Journal of Musculoskeletal Trauma

Pelvis/Acetabular Fractures in the Elderly: When and How to Fix?: Kyeong Hyeon Park, Chang Wug Oh, Joon Woo Kim; J Korean Fract Soc 2018;31(3):102-113. Published online July 31, 2018; DOI: https://doi.org/10.12671/jkfs.2018.31.3.102

Owing to the increase in life expectancy, the incidence of osteoporotic fracture of the pelvis and acetabulum is increasing. Fractures in the elderly population is different from those in younger patients. Pelvic ring and acetabular fractures in geriatric patients are more likely the result of low-energy trauma, but the outcomes are generally poorer than those of the younger population. Multiple management options are available, but no intervention has become the standard of care for these fractures in the elderly. A treatment strategy should be established depending on the state of the individual patient. Regardless of whether nonsurgical or surgical treatment is selected, early ambulation should be considered to avoid the complications associated with prolonged immobilization.

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Effect of Korean Medicine Treatments for Pain Reduction in Patients with Hip Fracture : A Retrospective Observational Study
Nam Hoon Kim, Min Seok Oh
Journal of Physiology & Pathology in Korean Medicine.2020; 34(5): 263. CrossRef

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A Correction of Malunion or Deformity in the Lower Extremity: Kyeong Hyeon Park, Joon Woo Kim, Chang Wug Oh; J Korean Fract Soc 2017;30(4):219-227. Published online October 31, 2017; DOI: https://doi.org/10.12671/jkfs.2017.30.4.219

Abstract PDF: The incidence of malunion in the long bone with has been reduced because of the advancements in surgical technique. However, nonunion or malunion are still observed in mechanical axis deformation of the lower limb, resulting in the overload of cartilage and instability of the joint, requiring surgical correction. Preoperative planning for malunion is very important, and accurate evaluation of the deformity is essential. Herein, we describe the indications of corrective osteotomy, choice of patients, and various surgical methods for the treatment of malunion of the long bone.

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Surgical Timing of Treating Pediatric Trauma: Urgencies/Emergencies: Chang Wug Oh, Joon Woo Kim, Jong Chul Lee; J Korean Fract Soc 2015;28(2):146-154. Published online April 30, 2015; DOI: https://doi.org/10.12671/jkfs.2015.28.2.146

Abstract PDF: No abstract available.

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The Result of Conservative Treatment of Proximal Humerus Fracture in Elderly Patients: Seung Gil Baek, Chang Wug Oh, Young Soo Byun, Jong Keon Oh, Joon Woo Kim, Jong Pil Yoon, Hyun Joo Lee, Hyung Sub Kim; J Korean Fract Soc 2013;26(4):292-298. Published online October 31, 2013; DOI: https://doi.org/10.12671/jkfs.2013.26.4.292

Abstract PDF: PURPOSE
With the increase in the old age population, proximal humerus fractures have been increasing recently. However, complications after operative treatment, such as fixation failure, are common because of osteoporosis. We treated proximal humerus fractures in patients with osteoporosis conservatively, and evaluated the radiographic and functional results by analyzing the factors affecting the results.
MATERIALS AND METHODS
Nineteen out of 30 cases for whom the clinical follow-up was over 1 year were included in this retrospective study. There were 17 females and 2 males, and the mean age was 73.2 years. The causes were slip from a short height (18 cases) and a minor car accident (1 case). We evaluated the union period, nonunion, malunion and the Constant score and analyzed several factors affecting the functional result, such as age, fracture pattern, and malunion.
RESULTS
Seventeen cases (89.5%) obtained union within 12.8 weeks on average. Neck-shaft angle was 125.3degrees on average, with seven cases of malunion. The Constant score was 84.1 on average, and there were excellent scores in 11 cases, good scores in 4 cases, and fair scores in 2 cases. Fracture pattern, neck-shaft angle, or malunion did not affect the functional outcome, and elderly patients showed poorer shoulder function.
CONCLUSION
Proximal humeral fractures with osteoporosis may achieve a high rate of bony union when treated with conservative methods. Despite the common occurrence of malunion, a satisfactory functional outcome may be expected.

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Selection and Recommended Usage Guide of Temporary External Fixator: Seung Jae Lim, Ki Sun Sung, Chang Wug Oh; J Korean Fract Soc 2013;26(2):164-169. Published online April 30, 2013; DOI: https://doi.org/10.12671/jkfs.2013.26.2.164

Abstract PDF: No abstract available.

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Operative Treatment of Humerus Shaft Fracture: Conventional Open Plating or Minimally Invasive Plate Osteosynthesis: Hyun Joo Lee, Chang Wug Oh; J Korean Fract Soc 2012;25(2):155-162. Published online April 30, 2012; DOI: https://doi.org/10.12671/jkfs.2012.25.2.155

Abstract PDF

No abstract available.

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A study of functional outcome of humeral shaft fracture treated with anterior bridge plating
Nishant V. SHIVADE, Nitin PATIL, Paresh PATIL, Sapan VORA, Jaykumar K
Minerva Orthopedics.2021;[Epub] CrossRef
Comparing the Use of Single and Double Interlocking Distal Screws on a Polarus Intramedullary Nail for Humeral Shaft Fractures
Hee Seok Yang, Jeong Woo Kim, Hong Je Kang, Jung Hyun Park, Yong Chan Lee, Kwang Mee Kim
Clinics in Shoulder and Elbow.2015; 18(2): 91. CrossRef
Polarus Intramedullary Nail for Proximal Humeral and Humeral Shaft Fractures in Elderly Patients with Osteoporosis
Youn-Soo Hwang, Kwang-Yeol Kim, Hyung-Chun Kim, Su-Han Ahn, Dong-Eun Lee
Journal of the Korean Fracture Society.2013; 26(1): 14. CrossRef

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Minimally Invasive Anterior Plating of Humeral Shaft Fractures: Hyun Joo Lee, Chang Wug Oh, Do Hyung Kim, Kyung Hyun Park; J Korean Fract Soc 2011;24(4):341-346. Published online October 31, 2011; DOI: https://doi.org/10.12671/jkfs.2011.24.4.341

Abstract PDF

PURPOSE
We evaluated the efficacy and results of minimally invasive anterior plating for humeral shaft fracture.
MATERIALS AND METHODS
Twenty-two cases of humeral shaft fracture were reviewed, including 8 cases of type A, 8 of type B and 6 of type C (AO/OTA classification). There were three open fractures. The fracture was fixed with MIPO (minimally invasive plate osteosynthesis) technique under C-arm guide. A locking compression plate was located in anterior aspect of the humerus with at least three screws fixed in each fragment. Radiologic and functional results were evaluated.
RESULTS
In 20 of 22 cases, bony union was achieved with the mean period of 17.5 weeks, including 2 cases of delayed union. There were 2 cases of nonunion, which needed the further operative procedure. Except one case of distal 1/3 fracture, all cases showed satisfactory elbow and shoulder function with the mean Mayo elbow score of 17.4 and mean UCLA shoulder score of 97.3. In complication, there was one case of radial nerve palsy due to improper traction, but it was completely improved after 3 months. Otherwise, there was no complication including infection.
CONCLUSION
Anterior MIPO for humeral shaft fracture may be another option of operative methods with high union and low complication rate.

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Minimal Invasive Plate Osteosynthesis versus Conventional Open Plating in Simple Humeral Shaft Fracture (AO Type A, B1, B2)
Boseon Kim, GwangChul Lee, Hyunwoong Jang
Journal of the Korean Fracture Society.2017; 30(3): 124. CrossRef
Clinical and Radiographical Follow-up for Residual Displacement of Fracture Fragments after Interlocking Intramedullary Nailing in Humeral Shaft Fractures
Jae-Kwang Yum, Dong-Ju Lim, Eui-Yub Jung, Su-Een Sohn
The Journal of the Korean Shoulder and Elbow Society.2013; 16(2): 107. CrossRef
Operative Treatment of Humerus Shaft Fracture: Conventional Open Plating or Minimally Invasive Plate Osteosynthesis
Hyun-Joo Lee, Chang-Wug Oh
Journal of the Korean Fracture Society.2012; 25(2): 155. CrossRef

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Treatment of Peri-prosthetic Fracture about Total Knee Replacement: Sang Hyup Yoon, Chang Wug Oh; J Korean Fract Soc 2011;24(2):206-211. Published online April 30, 2011; DOI: https://doi.org/10.12671/jkfs.2011.24.2.206

Abstract PDF: No abstract available.

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Acute Compartment Syndrome after Trauma: Chang Wug Oh, Hyun Joo Lee; J Korean Fract Soc 2010;23(4):399-403. Published online October 31, 2010; DOI: https://doi.org/10.12671/jkfs.2010.23.4.399

Abstract PDF

No abstract available.

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Design and Feasibility Test of Motorized Hand-Held Devices for Intra-compartmental Pressure Monitoring
Bomi Yang, Jaeho Hyun, Jingyu Kim, Jihoon Kweon, Jaesoon Choi, Youngjin Moon, Ji Wan Kim
International Journal of Precision Engineering and Manufacturing.2024; 25(1): 99. CrossRef
Delayed Treatment of Foot Compartment Syndrome: A Case Report and Literature Review
Jihoon Jang, Young Choi
Journal of Korean Foot and Ankle Society.2021; 25(1): 46. CrossRef
Acute Compartment Syndrome after Anticoagulant Therapy to Misdiagnosed Deep Vein Thrombosis
Seok-Ha Hwang, Ho-Seung Jeon, Young-Kyun Woo, Seong-Tae Lim
Journal of the Korean Orthopaedic Association.2019; 54(2): 177. CrossRef
A Clinical Case Study of Residual Symptoms after Decompression of Traumatic Compartment Syndrome
Min Jung Ji, Seong Chul Lim, Jae Soo Kim, Hyun Jong Lee, Yun Kyu Lee
The Acupuncture.2015; 32(3): 197. CrossRef
Diagnosis and Management of Acute Compartment Syndrome
Keun-Bae Lee, Seung-Hun Lee
Journal of the Korean Fracture Society.2015; 28(1): 93. CrossRef
Clinical Outcomes of Fasciotomy for Acute Compartment Syndrome
Ji Yong Park, Young Chang Kim, Ji Wan Kim
Journal of the Korean Fracture Society.2015; 28(4): 223. CrossRef
Compartment Syndrome of the Gluteus Medius Occurred without Bleeding or Trauma: A Case Report
Gyu-Min Kong, Yong-Uk Kwon, Jun-Ho Park
Hip & Pelvis.2015; 27(4): 278. CrossRef
Selection and Recommended Usage Guide of Temporary External Fixator
Seung-Jae Lim, Ki-Sun Sung, Chang-Wug Oh
Journal of the Korean Fracture Society.2013; 26(2): 164. CrossRef

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Staged Minimally Invasive Plate Osteosynthesis of Distal Tibial Fractures: Sung Ki Park, Chang Wug Oh, Jong Keon Oh, Kyung Hoon Kim, Woo Kie Min, Byung Chul Park, Won Ju Jeong, Joo Chul Ihn; J Korean Fract Soc 2010;23(3):289-295. Published online July 31, 2010; DOI: https://doi.org/10.12671/jkfs.2010.23.3.289

Abstract PDF

PURPOSE
To assess the result of staged minimally invasive plate osteosynthesis (MIPO) for distal tibial fracture with an open wound or injured soft tissue.
MATERIALS AND METHODS
In 20 patients (mean age, 47.8 year-old) with distal tibial fractures, there were 4 type A fractures and 16 type C fractures based on the AO classification system. Eight of the 20 patients had open fractures. MIPO was performed on average 23.9 days after bridging external fixation. At the final follow-up, we assessed the radiological results of bone union and alignment. Functional results were also evaluated by measuring the degrees of ankle motion and the American Orthopedic Foot & Ankle Society (AOFAS) scores.
RESULTS
Seventeen of 20 cases (85%) achieved primary union at an average of 21.3 weeks. There were 3 cases of nonunion requiring a bone graft. The mean AOFAS score was 88.5 (range, 67~92) and the average range of ankle motion was 49.2degrees (plantarflexion: 37.4degrees, dorsiflexion: 11.8degrees). Complication included 2 cases of minor mal-alignment, 1 case of claw toe and 1 case of peroneal neuropathy. Patients over the age of 60 had lower functional results. Additional factors did not affect the final results.
CONCLUSION
Staged MIPO may achieve satisfactory results in distal tibial fractures with soft tissue compromise, decreasing deep infections and soft tissue complications.

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Anterolateral Minimally Invasive Plate Osteosynthesis of Distal Tibial Fractures Using an Anterolateral Locking Plate
Dongwhan Suh, Hwan Hee Lee, Young Hoon Han, Jae Jung Jeong
Journal of Korean Foot and Ankle Society.2020; 24(1): 19. CrossRef
Minimally Invasive Osteosynthesis with Locking Compression Plate for Distal Tibia Fractures
Sung-Kyu Kim, Keun-Bae Lee, Keun-Young Lim, Eun-Sun Moon
Journal of the Korean Fracture Society.2011; 24(1): 33. CrossRef

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Crescent Fracture-dislocation of Sacroiliac Joint: Affecting Factors of Operative Results: Hee Soo Kim, Chang Wug Oh, Poong Taek Kim, Young Soo Byun, Joo Woo Kim, Byung Chul Park, Woo Kie Min, Hyun Joo Lee; J Korean Fract Soc 2009;22(2):71-78. Published online April 30, 2009; DOI: https://doi.org/10.12671/jkfs.2009.22.2.71

Abstract PDF

PURPOSE
To assess the affecting factors of results after the operation of Crescent fracture-dislocation in sacro-iliac joint.
MATERIALS AND METHODS
In 19 patients (mean age, 47.4 year-old) of open reduction and internal fixation for Crescent fracture-dislocation, there were seven type I, 9 type II, and 3 type III fractures according to Day's classification. We assessed affecting factors of radiological and functional results, such as patients' ages, surgical approaches, the fixation extent of pelvic ring, and fracture patterns.
RESULTS
Seventeen of 19 cases united at 14.5 weeks in average, and 2 non-unions occurred with the fixation failure of posterior ring. Satisfactory results were 14 and 15 in radiological and functional evaluation, respectively. In complications, three cases of leg length discrepancy were from an imperfect reduction and two fixation failures. Surgical approach did not show any difference of results, but all cases of unsatisfactory reduction occurred from posterior ring fixation through the anterior approach. Fixation of both rings seemed to have satisfactory results, comparing to posterior ring only. Older patients over 60 year-old had more complications and a tendency to show an unsatisfactory result.
CONCLUSION
In operative treatment of Crescent fracture-dislocation of sacro-iliac joint, it is better to fix both anterior and posterior rings. But, caution is needed to prevent complications in old-aged patients.

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General Assessment and Initial Management of Polytrauma Patients
Hyoung Keun Oh
Journal of the Korean Fracture Society.2013; 26(3): 230. CrossRef
Damage Control and Provisional Fixation
Hyoung Keun Oh
Journal of the Korean Fracture Society.2010; 23(3): 346. CrossRef

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Minimally Invasive Plate Osteosynthesis of Subtrochanteric Femoral Fractures: Chang Wug Oh; J Korean Fract Soc 2009;22(2):123-129. Published online April 30, 2009; DOI: https://doi.org/10.12671/jkfs.2009.22.2.123

Abstract PDF

No abstract available.

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Fixation of the Femoral Subtrochanteric Fracture with Minimally Invasive Reduction Techniques
Chul-Hyun Park, Chul-Wung Ha, Sang-Jin Park, Min-Su Ko, Oog-Jin Shon
Journal of the Korean Fracture Society.2013; 26(2): 112. CrossRef
The Treatment of Subtrochanteric Fracture with Cephallomedually Nail -Minimal Incision and Lowman Clamp Assisted Reduction-
Jang Seok Choi, Do Hyun Moon, Young Tae Noh
Journal of the Korean Fracture Society.2011; 24(4): 301. CrossRef

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Staged Minimally Invasive Plate Osteosynthesis of Proximal Tibial Fracture: Joon Woo Kim, Chang Wug Oh, Jong Keon Oh, Hee Soo Kyung, Woo Kie Min, Byung Chul Park, Kyung Hoon Kim, Hee Joon Kim; J Korean Fract Soc 2009;22(1):6-12. Published online January 31, 2009; DOI: https://doi.org/10.12671/jkfs.2009.22.1.6

Abstract PDF

PURPOSE
To assess the results of staged MIPO (Minimally Invasive Plate Osteosynthesis) for proximal tibial fractures with compromised soft tissue.
MATERIALS AND METHODS
Eighteen proximal tibial fractures (AO 41:9 cases, AO 42:9 cases) included this study. Ten were open fractures. After temporary external fixation until soft tissue healed (mean 27.3 days), MIPO was performed secondarily without bone graft. We assessed the bony union and knee function, and affecting factors of the results were investigated.
RESULTS
All fractures united at 20 weeks (range, 11~32) except 1 case. Mean range of knee flexion was 134.4degrees and mean IOWA knee score was 89.1. There were 2 superficial and 2 delayed deep infections from open fractures (grade II:1 case, grade III:3 cases), although they healed after implant removal. Open fractures seem to influence the infection rate. Otherwise, there was no related factor affecting the results.
CONCLUSION
MIPO after temporary external fixation can provide favorable results in proximal tibial fractures with soft tissue injuries, but attention of delayed infection should be paid in open fractures.

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MINIMALLY INVASIVE OSTEOSYNTHESIS WITH PLATE OR NAIL FOR META-DIAPHYSEAL TIBIAL FRACTURES - WHAT IS BETTER?
B. Makelov
Trakia Journal of Sciences.2023; 21(4): 357. CrossRef
Effect of Korean Medicine Treatments in Patients with Proximal Tibia Fracture: A Retrospective Observational Study
Jung Min Lee, Eun-Jung Lee
Journal of Korean Medicine Rehabilitation.2020; 30(3): 141. CrossRef
Comparison of Time to Operation and Efficacies of Ultrasound-Guided Nerve Block and General Anesthesia in Emergency External Fixation of Lower Leg Fractures (AO 42, 43, 44)
Chan Kang, Sang-Bum Kim, Youn-Moo Heo, You-Gun Won, Byung-Hak Oh, June-Bum Jun, Gi-Soo Lee
The Journal of Foot and Ankle Surgery.2017; 56(5): 1019. CrossRef
Minimally Invasive Plate Osteosynthesis for Proximal Tibial Shaft Fracture
Young-Soo Byun, Ki-Chul Park, Hyun-Jong Bong, Chang-Hoon Lee
Journal of the Korean Fracture Society.2011; 24(1): 23. CrossRef
The Use of Fresh Frozen Allogenic Bone Graft in the Impacted Tibial Plateau Fractures
Yeung Jin Kim, Soo Uk Chae, Jung Hwan Yang, Ji Wan Lee, Dae Han Wi, Duk Hwa Choi
Journal of the Korean Fracture Society.2010; 23(1): 26. CrossRef
Management of Open Fracture
Gu-Hee Jung
Journal of the Korean Fracture Society.2010; 23(2): 236. CrossRef
Staged Minimally Invasive Plate Osteosynthesis of Distal Tibial Fractures
Sung-Ki Park, Chang-Wug Oh, Jong-Keon Oh, Kyung-Hoon Kim, Woo-Kie Min, Byung-Chul Park, Won-Ju Jeong, Joo-Chul Ihn
Journal of the Korean Fracture Society.2010; 23(3): 289. CrossRef
Intramedullary Nailing of Proximal Tibial Fractures
Young-Soo Byun, Dong-Ju Shin
Journal of the Korean Fracture Society.2009; 22(3): 197. CrossRef
Proximal Tibia Fracture: Plating
Ki-Chul Park
Journal of the Korean Fracture Society.2009; 22(3): 206. CrossRef

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What is an Ideal Treatment?: Chang Wug Oh; J Korean Fract Soc 2008;21(4):347-352. Published online October 31, 2008; DOI: https://doi.org/10.12671/jkfs.2008.21.4.347

Abstract PDF: No abstract available.

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Minimally Invasive Plate Osteosynthesis in Pediatric Femoral Fractures: What is an Optimal Treatment in a Femoral Fracture of 11 Years-old: Chang Wug Oh; J Korean Fract Soc 2008;21(2):169-175. Published online April 30, 2008; DOI: https://doi.org/10.12671/jkfs.2008.21.2.169

Abstract PDF

No abstract available.

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Comparative Outcomes of MIPO vs ESIN in Complex Pediatric Tibial Fractures
Danilo Leonetti, Gabriele Giuca, Daniela Alessia Marletta, Giovanni Marrara, Biagio Zampogna, Matteo Nanni, Ilaria Sanzarello
Journal of Pediatric Orthopaedics.2025;[Epub] CrossRef

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Bone Transport Over the Intramedullary Nail for Defects of Long Bone: Jae Young Roh, Chang Wug Oh, Jong Keon Oh, Hee Soo Kyung, Byung Chul Park, Woo Kie Min, Joon Woo Kim, Chang Hyun Cho; J Korean Fract Soc 2008;21(1):37-44. Published online January 31, 2008; DOI: https://doi.org/10.12671/jkfs.2008.21.1.37

Abstract PDF

PURPOSE
To evaluate the results of bone transport using external fixator over an intramedullary nail for defects of long bone.
MATERIALS AND METHODS
We treated 14 cases of bone defect after chronic osteomyelitis or trauma of tibia (12 cases) and femur (2 cases) using this method. The mean age of index procedure was 46.9 years, and all of them had follow-up study for a mean of 3 years. After the corticotomy and insertion of intramedullary nail, bone transport was done by external fixators. Then, the segment was moved and bone graft was done at docking site.
RESULTS
The mean transported amount was 5.8 cm, and the external fixator was removed after 141 days. The mean external fixation index was 25.6 days/cm. Primary union of distraction and docking site was achieved in all, but one had failure in union of docking site. According to the Mekhail's functional criteria, there were 5 excellent, 6 good, and 3 fair results. Among 15 complications, there were 2 major complications with residual sequelae, and they were 1 recurred osteomyelitis and 1 flexion contracture of knee.
CONCLUSION
Bone transport using external fixator over an intramedullary nail, can successfully solve defects of long bone. Since this method can remove external fixators earlier than the conventional method, it has fewer complications and makes patients to return to daily life earlier.

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Treatment for Bone Defect of Open Tibial Fractures by Using Intramedullary Nail Fixation with Autogenous Iliac Bone Graft
Hyub Sakong, Ki Cheor Bae, Chul Hyun Cho, Kyung Jae Lee, Eun Seok Son, Du Han Kim
Journal of the Korean Fracture Society.2012; 25(4): 288. CrossRef

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Comparison of Operative Methods between Retrograde and Antegrade Nailing for Ipsilateral Femoral Shaft and Neck Fracture: Chang Wug Oh, Jong Keon Oh, Woo Kie Min, Shin Yoon Kim, Seung Hoon Baek, Byung Chul Park, Hyung Soo Ahn, Tae Gong Kim; J Korean Fract Soc 2007;20(2):135-140. Published online April 30, 2007; DOI: https://doi.org/10.12671/jkfs.2007.20.2.135

Abstract PDF

PURPOSE
To compare retrospectively the antegrade and retrograde nailing in the management of ipsilateral femoral neck and shaft fractures.
MATERIALS AND METHODS
Thirty-two patients (thirty-three injuries) were included in this study. Mean age of patients was 38 years-old in the antegrade nailing group (16 injuries) and 44 years-old in the retrograde nailing group (17 injuries). We compared the union of fractures and complications between two groups, and investigated the influencing factors.
RESULTS
Femoral shaft fracture was united in 10 cases (63%) of antegrade group and 12 cases (71%) of retrograde group, at 28.2 and 27.3 weeks respectively. Nonunion was more prevalent in Winquist-Hansen III and IV (5 in antegrade nailing, 3 in retrograde nailing) than I and II. Femoral neck fracture was united with 1 case of nonunion in each group. Nonunion developed from Garden stage IV, but fractures of Garden stage I and II united regardless of methods.
CONCLUSION
In ipsilateral femoral neck and shaft fractures, the kinds of methods did not affect the results of shaft fractures. Minimally displaced neck fractures also were not influenced by kinds of methods, but retrograde nailing may have a benefit in fixing the displaced neck fractures

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Surgical management of bifocal femoral fractures: a systematic review and pooled analysis of treatment with a single implant versus double implants
J. D. Cnossen, Esther M. M. Van Lieshout, Michael H. J. Verhofstad
Archives of Orthopaedic and Trauma Surgery.2023; 143(10): 6229. CrossRef
Retrograde Intramedullary Nailing or the Treatment of Segmental Femoral Shaft Fracture Including Distal Part
Jong-Ho Yoon, Byung-Woo Ahn, Chong-Kwan Kim, Jin-Woo Jin, Ji-Hoon Lee, Hyun-Ku Cho, Joo-Hyun Lee
Journal of the Korean Fracture Society.2009; 22(3): 145. CrossRef
The Treatment of IM Nailing of Femoral Shaft Fracture: Piriformis Fossa versus Trochanteric Entry Portal
Hyun Kook Youn, Oog Jin Shon, Dong Sung Han
Journal of the Korean Fracture Society.2008; 21(3): 200. CrossRef

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Radiological Landmarks for the Assessment of the Alignment in the Use of the LCP-PLT (Locking Compression Plate-Proximal Lateral Tibia): An Anatomical and Radiological Study: Jong Keon Oh, Chang Wug Oh, Kwon Jae Roh, Hoon Sang Sohn; J Korean Fract Soc 2006;19(4):477-481. Published online October 31, 2006; DOI: https://doi.org/10.12671/jkfs.2006.19.4.477

Abstract: PURPOSE
To evaluate the conformity of the anatomically pre-shaped LCP-PT to the tibias of the Korean adult and to identify radiological guidelines to assist intraoperative assessment of correct alignment.
MATERIALS AND METHODS
30 adult femur obtained from the Korean adult cadaver were used. A nine or eleven-hole LCP-DF was applied to the lateral surface of the tibia according to the contour. Then the distance from the inner surface of the plate to the lateral condyle was measured at the sites of mismatch. The angle between the most proximal screw and the articular surface was measured with the image intensifier.
RESULTS
The LCP-PT showed good conformity to the tibia in general. The distance from the inner surface of the plate to the lateral condyle was 3.5mm in average (range 0~9). The angle between the most proximal locking screw and the joint line was 1.16 degrees in average (range 0~7 degree).
CONCLUSION
The LCP-PT showed good conformity to the tibia in general. Malposition of the most proximal screw which is not paralleling to the joint line may herald a coronal plane malalignment.

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Minimally Invasive Plate Osteosynthesis for Comminuted Subtrochanteric Fracture of the Femur: Chang Wug Oh, Jong Keon Oh, Sung Jung Kim, Shin Yoon Kim, Seung Hoon Baek, In Ho Jeon, Poong Taek Kim, Sang Won Lee; J Korean Fract Soc 2006;19(4):407-411. Published online October 31, 2006; DOI: https://doi.org/10.12671/jkfs.2006.19.4.407

Abstract

PURPOSE
To evaluate the outcomes of patients with comminuted subtrochanteric femoral fractures using minimally invasive plate osteosynthesis (MIPO) technique.
MATERIALS AND METHODS
Twelve patients with a mean age of 38.2 years, who sustained comminuted subtrochanteric femoral fractures, were treated using MIPO technique. All patients suffered these fractures either from traffic accidents (6) or falls from height (6). Average follow-up was 4.3 years (range, 29~78 months). Patients were assessed radiographically and clinically with regards to time to union, malunion, and complications. According to the Seinsheimer's classification, there were 1 type III, 7 type IV, and 4 type V. Type C fractures were ten according to AO-OTA classification.
RESULTS
Union was achieved in 7 of 12 cases, in an average of 23.4 weeks (range, 12~42 weeks). Three definite non-unions with implant failures, needed the procedure of implant change and bone graft. In other two patients, early bone graft was performed for anticipated nonunion of comminuted area. The most common complication was metal failures (2 plate failures and 3 screw breakages). Limb length shortening of 1.5 cm occurred in one patient, and external rotation malunion of 15 degrees was noted in one patient. No patients developed infection.
CONCLUSION
Preserving biology of the fracture fragments, the use of MIPO technique using DCS has proven to be less successful in comminuted subtrochanteric fractures, comparing to fractures in other areas. To avoid mechanical failure, the careful and protective weight bearing is needed until the callus-bridging is seen in the commniuted area.

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Minimally Invasive Plate Osteosynthesis for Femoral Mid-Diaphyseal Fractures
Hyoung-Keun Oh, Suk-Kyoo Choo, Jong-In Kim, Sung-Jong Woo
Journal of the Korean Fracture Society.2013; 26(2): 140. CrossRef
Fixation of the Femoral Subtrochanteric Fracture with Minimally Invasive Reduction Techniques
Chul-Hyun Park, Chul-Wung Ha, Sang-Jin Park, Min-Su Ko, Oog-Jin Shon
Journal of the Korean Fracture Society.2013; 26(2): 112. CrossRef
Minimally Invasive Plate Osteosynthesis of Subtrochanteric Femoral Fractures
Chang-Wug Oh
Journal of the Korean Fracture Society.2009; 22(2): 123. CrossRef
What is an Ideal Treatment?
Chang-Wug Oh
Journal of the Korean Fracture Society.2008; 21(4): 347. CrossRef

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Treatment of Complex Tibial Plateau Fractures: A Modified Patient Positioning for the Combined Anterior and Posterior Approaches: Jong Keon Oh, Chang Wug Oh, Seung Beom Hahn, Kwon Jae Roh, Kwan Hee Lee; J Korean Fract Soc 2006;19(3):396-400. Published online July 31, 2006; DOI: https://doi.org/10.12671/jkfs.2006.19.3.396

Abstract

We have treated thirteen complex plateau fractures involving both condyles with one of the following conditions with the use of the combined anterior and posterior approaches in a modified supine position. Associated PCL avulsion fracture, displacement of major fracture plane dominantly at the back, large coronal fracture fragment involving medial or lateral condyles. A patient is placed on an operation table in supine position with a bump under the contralateral buttock. The well leg is placed in a lithotomy position and the injured leg is placed over a sterilized Mayo stand separately. For the posterior approach the table was tilt toward the injured side with the hip abducted and rotated externally. With a modified patient's positioning we were able to use combined anterior and posterior approaches simultaneously for the management of certain complex plateau fractures without changing the draping.

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Current Concepts in Management of Tibia Plateau Fracture
Sang Hak Lee, Kang-Il Kim
Journal of the Korean Fracture Society.2014; 27(3): 245. CrossRef

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Stripping of the Hexagonal Recess in the Process of LCP (Locking Compression Plate) Removal: Jong Keon Oh, Chang Wug Oh, Hoon Jung, Kwon Jae Roh, Tae Ho Kim; J Korean Fract Soc 2006;19(2):283-287. Published online April 30, 2006; DOI: https://doi.org/10.12671/jkfs.2006.19.2.283

Abstract

PURPOSE
To report the difficulties in the process of locking head screw removal due to the stripping of the hexagonal recess of the screw head.
MATERIALS AND METHODS
We have removed 113 5.0-self tapping locking head screws and 202 3.5-self tapping locking head screws from 34 patients with fracture healing and 5 patients complicated with infection. All of the operations were done by one surgeon. All the screws were placed with the use of torque limiting attachment or driver.
RESULTS
All of 113 5.0-self tapping locking head screws were removed without difficulties with an usual manner. 21 out of 202 3.5-self tapping locking head screws were removed with many difficulties due to the stripping of the hexagonal recess. 3 screws were removed successfully with the use of conical extraction screw. 12 screws were taken out by further stripping and destruction of the screw head. In 6 situations where the only one screw was left stripped, the plate was bent around the stripped screw and then it was removed by turning the plate as a handle. One screw was removed with the partial breakage of the near cortex upon lifting the plate after failed attempt of using conical extraction screw.
CONCLUSION
Although we have followed the guidelines at the time of insertion we have experienced difficulties in the removal of 3.5 locking head screws due to the stripping of the hexagonal recess. Care should be taken at the time of removal of the locking plate especially for the 3.5 locking screws.

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An inexpensive and rapid method for removal of multiple stripped locking screws following locking plating: A case report
Won Ro Park, Jae Hoon Jang
International Journal of Surgery Case Reports.2019; 57: 134. CrossRef
Factors affecting accurate drill sleeve insertion in locking compression plates
J.-J. Kim, J.-W. Kim, H.-S. Yu, H.-S. Lee, H.-K. Oh
Orthopaedics & Traumatology: Surgery & Research.2013; 99(7): 823. CrossRef
Pitfalls and Complications in the Application of the Locking Plate
Jong-Keon Oh
Journal of the Korean Fracture Society.2007; 20(4): 355. CrossRef

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Treatment of Complex Distal Tibial Fractures: Chang Wug Oh; J Korean Fract Soc 2005;18(4):485-490. Published online October 31, 2005; DOI: https://doi.org/10.12671/jkfs.2005.18.4.485

Abstract PDF

No abstract available.

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Management of Open Fracture
Gu-Hee Jung
Journal of the Korean Fracture Society.2010; 23(2): 236. CrossRef
Management of Fractures of Distal Tibia by Minimally Invasive Plate Osteosynthesis through an Anterior Approach
Gu-Hee Jung, Jae-Do Kim, Jae-Ho Jang, Sung-Keun Heo, Dong-won Lee
Journal of the Korean Orthopaedic Association.2010; 45(6): 473. CrossRef
Two-staged Delayed Minimally Invasive Percutaneous Plate Osteosynthesis for Distal Tibial Open Fractures
Jung Hwan Yang, Seok Hyun Kweon, Jeung Woo Kim, Jin Young Park, Hyun Jun Kim, Chul Min Lim
Journal of the Korean Fracture Society.2008; 21(1): 24. CrossRef
Minimally Invasive Plate Osteosynthesis, MIPO
Young-Soo Byun
Journal of the Korean Fracture Society.2007; 20(1): 99. CrossRef

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Conformity of the LCP-DF (Locking Compression Plate-Distal Femur) in Korean Adult Femur: A Cadaver Study: Jong Keon Oh, Chang Wug Oh, Sun Hwa Park, Kwon Jae Roh, Chang Won Jeong; J Korean Fract Soc 2005;18(4):399-404. Published online October 31, 2005; DOI: https://doi.org/10.12671/jkfs.2005.18.4.399

Abstract PDF

PURPOSE
To evaluate the conformity of the anatomically pre-shaped LCP-DF to the femurs of the Korean adult.
MATERIALS AND METHODS
67 adult femur obtained from the Korean adult cadaver were used. An eleven-hole LCP-DF was applied to the lateral surface of the distal femur according to the contour. Then the distance from the inner surface of the plate to the cortex was measured at the sites of mismatch. The angle between the distal most screw and the articular surface was measured.
RESULTS
Mismatch was found at the level of proximal 4~5 holes of the plate with an average distance of 9.58 mm (0~18) at the tip of the plate. Otherwise, the overall conformity of the LCP-DF was excellent. The distal most screws are positioned such that the joint line is 3 degrees of valgus to this screw in average (range 0~18).
CONCLUSION
It may be necessary to consider to bend the plate in case of mismatch at the tip especially for the plate longer than 9-hole plate. The angular relation between the distal most screw and the joint line can assist the judgement for the coronal plane alignment.

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Comparison of Results of Minimally Invasive Plate Osteosynthesis according to Types of Locking Plate in Distal Femoral Fractures
Oog Jin Shon, Moon Soo Kwon, Chul Hyun Park
Journal of the Korean Fracture Society.2012; 25(4): 269. CrossRef
Repeated Metal Breakage in a Femoral Shaft Fracture with Lateral Bowing - A Case Report -
Dong Soo Kim, Yong Min Kim, Eui Sung Choi, Hyun Chul Shon, Kyoung Jin Park, Byung Ki Cho, Ji Kang Park, Hyun Cheol Lee, Kyung Ho Hong
Journal of the Korean Fracture Society.2012; 25(2): 136. CrossRef
Axial Malalignment after Minimally Invasive Plate Osteosynthesis in Distal Femur Fractures with Metaphyseal Comminution
Jae-Ho Jang, Gu-Hee Jung, Jae-Do Kim, Cheung-Kue Kim
Journal of the Korean Orthopaedic Association.2011; 46(4): 326. CrossRef
Treatment of Distal Femoral Fractures Using Polyaxial Locking Plate
Sang-Eun Park, Hyun-Taek Kang, Young-Yul Kim, Jae-Jung Jeong, Jung-U Lee, Weon-Yoo Kim
Journal of the Korean Fracture Society.2011; 24(4): 321. CrossRef
Pitfalls and Complications in the Application of the Locking Plate
Jong-Keon Oh
Journal of the Korean Fracture Society.2007; 20(4): 355. CrossRef

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A Biomechanical Advantage of the Lengthening with an External Fixator Over an Intramedullary Nail: An Experimental Study in Saw Bones and Cadeveric Bones: Chang Wug Oh, Poong Taek Kim, Hae Ryong Song, Jong Keon Oh, Hyung Soo Ahn, Byung Chul Park, Byung Guk Min, Sung Ki Park, Young Heon Sohn; J Korean Fract Soc 2005;18(3):335-340. Published online July 31, 2005; DOI: https://doi.org/10.12671/jkfs.2005.18.3.335

Abstract PDF: PURPOSE
To know biomechanical differences in methods of limb lengthening between using monolateral external fixator and using external fixator over an intramedullary nail.
MATERIALS AND METHODS
In acryl rods, saw-bone, and cadeveric bone, we created two lengthening models of using monolateral external fixator and using external fixator over an intramedullary nail. The axial compression test was done on the site of osteotomy for lengthening. To fix the models, half pins of 5 mm in diameter and nails of 9 mm in diameter were used. Using MTS (Material Test System) machine, we evaluated the differences of axial stiffness according to the presence of an intramedullary nail or the numbers of half-pins which were fixed at each side of osteotomy.
RESULTS
Lengthening over an intramedullary nail, comparing to monolateral external fixator only, increased the axial stiffness by 1.1~1.2 times in acryl rods, 1.2~1.6 times in saw bones, and 15.6~15.9 times in cadeveric bones when the same numbers of half-pins were used. In saw bone and cadaveric bone, the group of two half pins in lengthening over an intramedullary nail was stiffer than the group of three pins in lengthening with monolateral external fixator.
CONCLUSION
In the distraction of the limb, the addition of an intramedullary nail may increase the axial stiffness of the frame of monolateral external fixator. In lengthening over an intramedullary nail, it is enough to distract the bone with fixing two half pins at each sides of osteotomy.

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Double Plating of Proximal Tibial Fractures Using Minimally Invasive Percutaneous Osteosynthesis Technique: Chang Wug Oh, Jong Keon Oh, In Ho Jeon, Hee Soo Kyung, Il Hyung Park, Byung Chul Park, Woo Kie Min, Ji Ho Lee; J Korean Fract Soc 2005;18(3):250-255. Published online July 31, 2005; DOI: https://doi.org/10.12671/jkfs.2005.18.3.250

Abstract PDF

OBJECTIVES
To evaluate the results and its efficacy of double plating for proximal tibial fractures using minimally invasive percutaneous osteosynthesis (MIPO) technique. MATERIAL & METHODS: Twenty-three fractures, followed-up more than 1 year, were included in this retrospective study. There were 18 men and 5 women, and the mean age was 53.5 years-old. According to the AO-OTA classification, five were 41A, 13 were 41C, and 5 were 42. There were four open fractures (grade I- three, grade III A-one case). The plates were fixed on the medial and lateral sides of tibia with MIPO technique. Functional and radiographic results were evaluated by the modified Rasmussen system.
RESULTS
All fractures healed without bone graft, and the mean period for fracture healing was 19.3 weeks (range, 10~32 weeks). All other patients had excellent or good clinical or radiological results, except for two patients of a fair clinical result after a combined injury. Complications included one case of shortening (1 cm) and two cases of mal-alignments (varus less than 10 degrees). There was one case of superficial infection, but no patient showed deep infection.
CONCLUSION
Double plating using MIPO technique can provide favorable results in the treatment of proximal tibial fractures.

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Medial Minimally Invasive Percutaneous Plate Osteosynthesis in Proximal Tibial Comminuted Fractures
Jae-Ang Sim, Kwang-Hui Kim, Yong-Seuk Lee, Sang-Jin Lee, Beom-Koo Lee
Journal of the Korean Orthopaedic Association.2014; 49(4): 278. CrossRef
Minimally Invasive Plate Osteosynthesis for Proximal Tibial Shaft Fracture
Young-Soo Byun, Ki-Chul Park, Hyun-Jong Bong, Chang-Hoon Lee
Journal of the Korean Fracture Society.2011; 24(1): 23. CrossRef
Treatment of Proximal Tibia Fractures Using LCP by MIPO Technique
Sang-Ho Ha, Dong-Hui Kim, Jun-Young Lee
Journal of the Korean Fracture Society.2010; 23(1): 34. CrossRef
Staged Minimally Invasive Plate Osteosynthesis of Proximal Tibial Fracture
Joon-Woo Kim, Chang-Wug Oh, Jong-Keon Oh, Hee-Soo Kyung, Woo-Kie Min, Byung-Chul Park, Kyung-Hoon Kim, Hee-Joon Kim
Journal of the Korean Fracture Society.2009; 22(1): 6. CrossRef

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Management of Ipsilateral Femur and Tibia Fractures, with Retrograde and Antegrade Nailings from the Knee: Chang Wug Oh, Jong Keon Oh, Woo Kie Min, In Ho Jeon, Hyung Soo Ahn, Hee Soo Kyung, Poong Taek Kim, Jung Ho Noh; J Korean Fract Soc 2005;18(2):131-135. Published online April 30, 2005; DOI: https://doi.org/10.12671/jkfs.2005.18.2.131

Abstract PDF

PURPOSE
To review the results in the management of ipsilateral femur and tibia fractures, using femoral and tibial intramedullary nailings with single incision on the knee.
MATERIALS AND METHODS
We treated 19 cases of ipsilateral femur and tibia fractures (floating knee), and the retrograde femoral nailing and antegrade tibial nailing were done with single incision on the knee. Except one patient of early death, 18 patients were included in this study. The mean age of index procedure was 34.1 years, and all of them had follow-up study for a mean of 2.4 years. The mean injury severity score was 18.8, and 12 patients had other fractures in the lower extremity.
RESULTS
Primary union was achieved in all, but one patient of femur and two of tibia. The average period for union was 27.6 weeks for femur and 24.5 weeks for tibia. One femoral nonunion occurred due to the metal failure after using short nail, and two tibial nonunion were caused by the bone loss with open tibial fractures. Most patients showed no limitation in knee motion. According to Karlstrom-Olerud criteria, functional results showed 14 excellent, 3 good and 1 acceptable. The protrusion of nail tip into the knee joint made the acceptable result with moderate limitation of knee motion, but it improved after the removal of nail.
CONCLUSION
CONCLUSION: Simultaneous retrograde femoral and antegrade tibial nailing with single incision on the knee, with an appropriate technique, can achieve the satisfactory result in the management of the ipsilateral femur and tibia fractures.

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Ipsilateral Femoral Segmental and Tibial Fractures: A Case Report
Oog Jin Sohn, Chul Hyun Park, Sang Keun Bae
Journal of the Korean Fracture Society.2009; 22(3): 193. CrossRef

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Internal Bone Transport in the Management of Tibial Bone Defects: Chang Wug Oh, Woo Kie Min, Hee Soo Kyung, Il Hyung Park, In Ho Jeon, Byung Chul Park, Poong Taek Kim, Young Heon Sohn; J Korean Fract Soc 2005;18(1):36-42. Published online January 31, 2005; DOI: https://doi.org/10.12671/jkfs.2005.18.1.36

Abstract PDF

PURPOSE
To retrospectively review the results of internal bone transport in the management of tibial bone defect using ilizarov fixator.
MATERIALS AND METHODS
We treated 39 cases of tibial bone defect (16 of traumatic bone loss, 23 after treatment of osteomyelitis). The mean age of index procedure was 33.8 years (range, 13~66 years), and all of them had follow-up study for a mean of 3.5 years (range, 1.6~8 years). The mean transported amount was 6.3 cm (range, 2.7~20 cm), and the external fixator was removed after 345 days (range, 120~700 days). The mean external fixation index was 60.3 days/cm (range, 13.1~121.3 days/cm).
RESULTS
Primary union of distraction and docking site was achieved in all, but two patients had failure in union of docking site. Functional results showed 6 excellent, 19 good, 10 fair, and 4 fair. The patients under age 20 showed better functional outcomes than the others. Among 73 complications (incidence, 1.87 cases/ patient), 27 of major complications with residual sequelae occurred in 20 patients. The residual sequelae were more common in the patients who had the concomitant injuries in the same leg.
CONCLUSION
Internal bone transport can solve the large amount of tibial bone defect. However, the complications are not uncommon, which might be related to the concomitant injures in the same leg.

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Bone Transport Over the Intramedullary Nail for Defects of Long Bone
Jae-Young Roh, Chang-Wug Oh, Jong-Keon Oh, Hee-Soo Kyung, Byung-Chul Park, Woo-Kie Min, Joon-Woo Kim, Chang-Hyun Cho
Journal of the Korean Fracture Society.2008; 21(1): 37. CrossRef
Minimally Invasive Plate Osteosynthesis to Prevent or Treat the Deformity after Distraction Osteogenesis
Chang-Wug Oh, Byung-Chul Park, Il-Hyung Park, Hee-Soo Kyung, Woo-Kie Min, Seung-Hoon Baek, Seung-Kil Baek
The Journal of the Korean Orthopaedic Association.2007; 42(6): 764. CrossRef

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Treatment of Open Tibial Shaft Fractures using Unreamed Nailing: Jong Keon Oh, Chang Wug Oh, Kwon Jae Roh, Duk Moon Chung; J Korean Fract Soc 2005;18(1):22-28. Published online January 31, 2005; DOI: https://doi.org/10.12671/jkfs.2005.18.1.22

Abstract PDF

PURPOSE
To report the results of unreamed nailing using a nail with the largest possible diameter for the management of the open tibial shaft fractures.
MATERIALS AND METHODS
Nineteen patients with open tibial shaft fractures underwent unreamed nailing with the largest possible diameter according to the isthmic diameter measured on preoperative radiography. There were 1 Grade I, 6 Grade II, 9 Grade IIIa, 3 Grade IIIb open fractures. There were 4 type A, 12 type B, 3 type C fractures according to the OTA classification. Fractures were classified as The nail was introduced after gentle passage of a 7 to 8 millimeter-hand reamer.
RESULTS
Union was obtained in all cases. However 9 (47%) fractures required an additional procedures before union. In 6 cases, dynamization was done. Two of them were required exchange nailing for nonunion, 1 of two gained bony union through additional bone graft. Three of the others had gained union through exchange nailing, bone graft, bone transport respectively. There were one rotational malunion, one superfical and one deep infection. Interlocking screw breakage developed only in one patient.
CONCLUSION
Our data indicate that unreamed nailing in the management of open tibial fractures is safe and reliable method. Using a tight fitting nail with the largest possible diameter is a safe and effective way to avoid the problems of screw breakage.

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Treatment of Type IIIb Open Tibial Fractures
Seong Yeon Lim, Il Jae Lee, Jae Ho Joe, Hyung Keun Song
Journal of the Korean Fracture Society.2014; 27(4): 267. CrossRef
Management of Open Tibial Fractures: Role of Internal Fixation
Yerl-Bo Sung
Journal of the Korean Fracture Society.2007; 20(4): 349. CrossRef

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Operative Treatment of Type III Coronoid Process Fractures: In Ho Jeon, Woo Kie Min, Chang Wug Oh, Hee Soo Kyung, Byung Chul Park, Poong Taek Kim, Joo Chul Ihn, Jung Yup Lee; J Korean Fract Soc 2004;17(4):338-344. Published online October 31, 2004; DOI: https://doi.org/10.12671/jkfs.2004.17.4.338

Abstract PDF: PURPOSE
To review the clinical results of eight cases of typeIII coronoid process fractures which were treated operatively.
MATERIALS AND METHODS
Eight patients with coronoid type III fracture were reviewed retrospectively. All were men with an average age of 33. There were three isolated fractures, two elbow dislocations, two radial head and neck fractures, and one medial collateral ligament rupture. Open reduction and internal fixation through anterior approach with canulated screws was used. The patients were followed up for a mean of 31 months (24 to 60).
RESULTS
Average active elbow joint motion at the most recent follow up was 105degrees. The average Mayo Elbow Performance Score was 76.9 (50 to 95). There was one excellent result, four good, two fair, and one poor.
CONCLUSION
Early open reduction and stable internal fixation provided a reliable method for the treatment of type III coronoid process fractures. Any associated ligament injuries to the elbow and fracture comminution were considered as important prognostic factors.

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Minimally Invasive Percutaneous Plate Stabilization of Proximal Tibial Fractures: Chang Wug Oh, Jong Keon Oh, In Ho Jeon, Hee Soo Kyung, Il Hyung Park, Joo Chul Ihn, Yeon Ki Woo, Ho Sung Jung; J Korean Fract Soc 2004;17(3):224-229. Published online July 31, 2004; DOI: https://doi.org/10.12671/jkfs.2004.17.3.224

Abstract PDF

PURPOSE
Despite of various treatment methods, proximal tibial fractures are common injuries that may be associated with poor outcomes and high rates of complications. To improve this, percutaneous plating technique was performed in the proximal tibial fractures.
MATERIALS AND METHODS
Twenty-four proximal tibial fractures (AO 41A; 5, AO 41C; 12, AO 42; 7) were treated by percutaneous plating with either or both sides without bone graft. One was open fracture.
RESULTS
All fractures were healed. The average time for fracture healing was 16.5 weeks (range, 8~24 weeks). Complications included a 1cm shortened case and two mal-alignments; a 6 degree valgus case and 5 degree varus case. There was one case of superficial infection, which healed after plate removal. But, there was no deep infection. Results were evaluated by modified Rasmussen score system, all patients had excellent or good result.
CONCLUSION
Minimally invasive percutaneous plating technique can provide favorable results in the treatment of proximal tibial fractures.

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MINIMALLY INVASIVE OSTEOSYNTHESIS WITH PLATE OR NAIL FOR META-DIAPHYSEAL TIBIAL FRACTURES - WHAT IS BETTER?
B. Makelov
Trakia Journal of Sciences.2023; 21(4): 357. CrossRef
Medial Minimally Invasive Percutaneous Plate Osteosynthesis in Proximal Tibial Comminuted Fractures
Jae-Ang Sim, Kwang-Hui Kim, Yong-Seuk Lee, Sang-Jin Lee, Beom-Koo Lee
Journal of the Korean Orthopaedic Association.2014; 49(4): 278. CrossRef
Minimally Invasive Percutaneous Plate Stabilization Using a Medial Locking Plate for Proximal Tibial Fractures - Technical Note -
Jae Ang Sim, Beom Koo Lee, Kwang Hui Kim, Yong Seuk Lee
Journal of the Korean Fracture Society.2013; 26(4): 327. CrossRef
Clinical Outcomes of Locking Compression Plate Fixation through Minimally Invasive Percutaneous Plate Osteosynthesis in the Treatment of Distal Tibia Fracture
Jae-Sung Yoo, Hyun-Woo Park
Journal of the Korean Fracture Society.2012; 25(2): 117. CrossRef
Minimally Invasive Plate Osteosynthesis for Proximal Tibial Shaft Fracture
Young-Soo Byun, Ki-Chul Park, Hyun-Jong Bong, Chang-Hoon Lee
Journal of the Korean Fracture Society.2011; 24(1): 23. CrossRef
Minimally Invasive Plate Osteosynthesis for the Upper Extremity Fracture Using a Lumbar Spreader - Surgical Technique -
Gu-Hee Jung, Chyul-Hyun Cho, Jae-Do Kim
Journal of the Korean Fracture Society.2011; 24(1): 83. CrossRef
Management of Fractures of Distal Tibia by Minimally Invasive Plate Osteosynthesis through an Anterior Approach
Gu-Hee Jung, Jae-Do Kim, Jae-Ho Jang, Sung-Keun Heo, Dong-won Lee
Journal of the Korean Orthopaedic Association.2010; 45(6): 473. CrossRef
The Comparison of Minimally Invasive Plate Osteosynthesis and Intramedullary Nailing in the Treatment of the Proximal and Distal Tibia Fracture
Joon Soon Kang, Seung Rim Park, Sang Rim Kim, Yong Geun Park, Jae Ho Jung, Sung Wook Choi
Journal of the Korean Fracture Society.2010; 23(2): 172. CrossRef
Staged Minimally Invasive Plate Osteosynthesis of Proximal Tibial Fracture
Joon-Woo Kim, Chang-Wug Oh, Jong-Keon Oh, Hee-Soo Kyung, Woo-Kie Min, Byung-Chul Park, Kyung-Hoon Kim, Hee-Joon Kim
Journal of the Korean Fracture Society.2009; 22(1): 6. CrossRef
Proximal Tibia Fracture: Plating
Ki-Chul Park
Journal of the Korean Fracture Society.2009; 22(3): 206. CrossRef

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Grade III Tibia Open Fractures Treated with Unreamed Tibial Nailing: Chang Wug Oh, Hee Soo Kyung, Do Heon Kim, Il Hyung Park, Poong Taek Kim, Joo Chul Ihn, Yeon Ki Woo, Jung Yup Lee; J Korean Fract Soc 2004;17(2):148-152. Published online April 30, 2004; DOI: https://doi.org/10.12671/jkfs.2004.17.2.148

Abstract PDF

PURPOSE
This is a retrospective study to analyze the results of unreamed intramedullary nailing in grade III tibial open fracture.
MATERIALS AND METHODS
Twenty-nine Gustilo-Anderson grade III tibial open fractures fixed with unreamed tibial nail were followed more than one year. Primary union rate, union time, infection, conversion to external fixation, ankle and knee function according to different grade of open, fracture level, AO classification, and muscle flap were evaluated.
RESULTS
Primary union was achieved at sixteen fractures. There were three delayed union that achieved union twenty week after primary operation. And eight undergone secondary bone grafts which were done after inflammation sign subcided. Complications about infection were in five cases. Two cases were unable to maintain internal fixation due to deep infection, and three of superficial infection were treated with repeated debridement and antibiotics use.
CONCLUSION
In grade III tibial open fracture, unreamed nailing with early soft tissue reconstruction and early prophylactic bone graft can be a good treatment.

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Management of Open Fracture
Gu-Hee Jung
Journal of the Korean Fracture Society.2010; 23(2): 236. CrossRef
Management of Open Tibial Fractures: Role of Internal Fixation
Yerl-Bo Sung
Journal of the Korean Fracture Society.2007; 20(4): 349. CrossRef

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Treatment of Proximal Shaft Fracture of Tibia with Intramedullary Nail: Analysis According to AO Classification and the Poller Screw: Chang Wug Oh, Sung Jung Kim, In Ho Jeon, Hee Soo Kyung, Byung Chul Park, Joo Chul Ihn, Kyung Hoon Kim, Yun Kee Woo; J Korean Fract Soc 2004;17(2):133-137. Published online April 30, 2004; DOI: https://doi.org/10.12671/jkfs.2004.17.2.133

Abstract PDF

PURPOSE
This was a retrospective study to evaluate the results of intramedullary nailing in proximal shaft fracture of tibia. We analyzed those results according to AO classification and Poller screw.
MATERIALS AND METHODS
Thirty-three proximal tibial shaft fractures (32 patients) were followed for more than one year. In AO classification, there were 6 cases of type A, 14 cases of type B, and 13 cases of type C. We used Poller screws in 14 operations. We evaluated translation, angulation and nonunion after surgeries.
RESULTS
Twenty-eight cases (85%) were united primarily, but nonunions occurred in 5 cases. Malalignment (angulation>5degree or translation>5 mm) was found in 14 cases (42%). In Poller screw used and non-used groups, the malalignment was respectively showed in 2 cases (14%) and 12 cases (63%). According to AO classification, nonunion was found in only type B with 5 cases (36%).
CONCLUSION
Intramedullary nailing of proximal shaft fracture of tibia showed relatively lower rate of primary union. Especially, when initial fractures have a butterfly fragment, it showed the higher rate of nonunion. Moreover, the malalignment rate was relatively higher, yet it is possible to reduce the rate of malalignment by using Poller screw.

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Open Source-Based Surgical Navigation for Fracture Reduction of Lower Limb
Sanghyun Joung, Jaeyeong Park, Chul-Woo Park, Chang-Wug Oh, Il Hyung Park
Transactions of the Korean Society of Mechanical Engineers A.2014; 38(5): 497. CrossRef

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Minimally Invasive Plate Osteosynthesis for Distal Femoral Fractures: Sung Jung Kim, Chang Wug Oh, In Ho Jeon, Hee Soo Kim, Byung Chul Park, Hee Soo Kyung, Joo Chul Ihn, Ho Sung Jung; J Korean Soc Fract 2003;16(4):474-481. Published online October 31, 2003; DOI: https://doi.org/10.12671/jksf.2003.16.4.474

Abstract PDF

PURPOSE
We retrospectively reviewed the outcomes and advantages of minimal invasive plating osteosynthesis (MIPO) technique as a new treatment of distal femoral fractures.
MATERIALS AND METHODS
Sixteen supracondylar femoral fractures (15 patients) were treated by MIPO technique and evaluated radiologically and functionally after minimal 1 year follow-up (average; 22 months, range; 13~42 months). There were 9 women and 6 men with a mean age of 46 years old (range 35 to 64 years). Seven fractures were extended into knee joints (AO/OTA type C), and 9 were extraarticular (AO/OTA type A). Five cases were open fractures (type I; 2, type II; 3) according to the Gustilo-Anderson classification. After minimal lateral parapatellar incision and accurate reduction of intra-articular fractures, the supracondylar fractures were fixed by percuatneous plating method without exposure of fracture area. Neer scoring was used for functional evaluation of knee.
RESULT
At a mean of 17 weeks (range 14 to 22), most fractures united without secondary procedures. One case of nonunion had the procedure of bone graft, but there were no other complications including shortening over 1 cm, mal-alignment over 10 degrees, or deep infections. All the cases had good or excellent knee function, and the average range of knee motion was 120.6 degrees.
CONCLUSION
MIPO technique is a worthwhile method of managing distal femoral fractures with good unions and functional recovery.

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The Comparison of Minimally Invasive Percutaneous Plate Osteosynthesis versus Open Plate Fixation in the Treatment of in the Distal Femur Fracture
Seong-Jun Ahn, Suk-Woong Kang, Bu-Hwan Kim, Moo-Ho Song, Seong-Ho Yoo, Kwan-Taek Oh
Journal of the Korean Fracture Society.2013; 26(4): 314. CrossRef
Treatment of Distal Femur Fracture with Minimally Invasive Locking Compression Plate Osteosynthesis
Ki-Chul Park, Kyu-Sung Chung, Joon-Ki Moon
Journal of the Korean Fracture Society.2012; 25(1): 13. CrossRef
Axial Malalignment after Minimally Invasive Plate Osteosynthesis in Distal Femur Fractures with Metaphyseal Comminution
Jae-Ho Jang, Gu-Hee Jung, Jae-Do Kim, Cheung-Kue Kim
Journal of the Korean Orthopaedic Association.2011; 46(4): 326. CrossRef
Surgical Treatment of AO Type C Distal Femoral Fractures Using Locking Compression Plate (LCP-DF, Synthes®)
Kap-Jung Kim, Sang Ki Lee, Won-Sik Choy, Won-Cho Kwon, Do Hyun Lee
Journal of the Korean Fracture Society.2010; 23(1): 20. CrossRef
What is an Ideal Treatment?
Chang-Wug Oh
Journal of the Korean Fracture Society.2008; 21(4): 347. CrossRef

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Treatment of Nonunion in the Long Bone with Low Intensity Pulsed Ultrasound (LIPUS) and LASER: In Ho Jeon, Chang Wug Oh, Sung Jung Kim, Hee Soo Kyung, Il Hyung Park, Byung Chul Park, Joo Chul Ihn, Jun Young Yeo; J Korean Soc Fract 2003;16(2):177-185. Published online April 30, 2003; DOI: https://doi.org/10.12671/jksf.2003.16.2.177

Abstract PDF: PURPOSE
Low-intensity, pulsed ultrasound (LIPUS) has demonstrated a stimulation and acceleration of the normal fracture-repair process in cellular bases as well in animal and human models. In this study, the adjunctive effect of LIPUS and LASER was investigated in established nonunion of the long bones.
MATERIALS AND METHODS
Study group consisted of eight patients to whom conventional bone graft and adjunctive LIPUS and LASER was applied. On the other hand, eight patients in the control group underwent bone graft only. Eleven men and five women were included in this study and the average age of the patients was 41.7 years (range, 19~62 years). Six of the tibias and ten of the femurs met the criteria for established nonunion. The average fracture age, the post-fracture period before the start of LIPUS/LASER treatment, was 502 days.
RESULTS
Seven of the ten nonunions who were treated by LIPUS and LASER healed completely in an average treatment time of 141 days (range, 101~202 days) and otherwise, in control group, five of the eight nonunions healed completely, in 240 days (range, 183~283 days).
CONCLUSION
This clinical study showed a positive effect of LIPUS and LASER on the rate of osseous repair, especially accelerated time to initial callus cortical bridging compared to that of conventional treatment.

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Retrograde Intramedullary Nail for Femoral Shaft Fracture with Limited Indications: Sung Jung Kim, Chang Wug Oh, Joo Chul Ihn, Hee Soo Kim, In Ho Jeon, Hee Soo Kyung, Il Hyung Park, Kyung Hoon Kim; J Korean Soc Fract 2003;16(1):45-51. Published online January 31, 2003; DOI: https://doi.org/10.12671/jksf.2003.16.1.45

Abstract PDF

PURPOSE
This is a retrospective study to analyze the results after retrograde intramedullary(IM) nailing in femoral shaft fractures with limited indications.
MATERIALS AND METHODS
Twenty-four femoral shaft fractures(21 patients) were operated with unreamed IM nail(Unreamed femoral nail, SynthesR) in a retrograde method and were followed for more than 1 years. There were 16 men and 5 women, and the mean age at index operation was 41 years (range 18-76 years). In Winquist-Hansen classifications, there were 10 of type I, five of type II, three of type III, and six of type IV. All the patients had associated fractures or injuries, and there were eight ipsilateral tibia fractures, five ipsilateral proximal femoral fractures(including neck and trochanter), four ipsilateral pelvic or acetabular fracture, three bilateral femoral fractures, and one ipsilateral knee injury according to the used indications. In radiological study, we evaluated the time for union, non-unions and malunion, and clinical evaluation with Neer 's criteria was done.
RESULTS
Most fractures(87.5%) were primarily united cases, and the mean time for union was 15.8 weeks(range 12-20 weeks). Three cases of delayed union or nonunion were developed, but a shortening over 1cm or malunion over 10 degrees angular deformity were not found. Evaluating the knee functions, the Neer score was 86.9 in average and all the cases were above satisfactory grade. The average range of knee motion was 120.2 degrees, and the mild knee pain was developed in three cases.
CONCLUSION
The retrograde IM nailing can be a useful option for femoral shaft fractures with limited indications, including ipsilateral fractures of other areas or multiple fractures.

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Comparison of Operative Methods between Retrograde and Antegrade Nailing for Ipsilateral Femoral Shaft and Neck Fracture
Chang-Wug Oh, Jong-Keon Oh, Woo-Kie Min, Shin-Yoon Kim, Seung-Hoon Baek, Byung-Chul Park, Hyung-Soo Ahn, Tae-Gong Kim
Journal of the Korean Fracture Society.2007; 20(2): 135. CrossRef
Retrograde Intramedullary Nailing for the Treatment of Ipsilateral Femoral Shaft and Neck Fracture
Chang-Wug Oh, Jong-Keon Oh, Shin-Yoon Kim, Ki-Bong Cha, In-Ho Jeon, Byung-Chul Park, Woo-Kie Min, Tae-Gong Kim
The Journal of the Korean Orthopaedic Association.2007; 42(3): 380. CrossRef

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Treatment of femoral diaphyseal fractures in children: Comparison between conservative treatment and retrograde flexible intramedullary nailing: Chang Wug Oh, Byung Chul Park, Joo Chul Ihn, Hyung Tae Soh, Seung Hoon Baek; J Korean Soc Fract 2002;15(2):292-298. Published online April 30, 2002; DOI: https://doi.org/10.12671/jksf.2002.15.2.292

Abstract PDF: PURPOSE
To compare clinical outcomes and complications between pediatric patients with femoral shaft fracture who had undergone conservative treatment and retrograde flexible intramedullary nailing.
MATERIALS AND METHODS
51 cases of 46 pediatric patients who had femoral shaft fracture were retrospectively studied. Hip spica cast was applied 3~6 weeks after traction in 24 cases of conservative treatment group and closed reduction and internal fixation with flexible nails were performed in 27 cases.
RESULT
Neither pain, limitation of joint motion, nor nonunion was reported in both groups. In radiologic evaluation, 4 cases of angulation more than 10 degrees were observed in conservative treatment group and none of surgical treatment group. In leg length discrepancy(LLD) over 10 mm, there was none in surgical treatment group, but 4 cases were seen in the conservative group. Two cases of limping were observed only in the conservative group. Mean time to weight bearing was earlier in surgical treatment group(7.5 weeks) than that in the conservative group(10.8 weeks).
CONCLUSION
As treatment of pediatric femoral shaft fracture, retrograde flexible intramedullary nailing had less complications such as LLD and angulation and enabled earlier rehabilitation than conservative treatment.

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Effect of injected calcium-sulfate on the consolidation of distraction osteogenesis in rabbit model: Chang Wug Oh, Poong Taek Kim, Byung Chul Park, Il Hyung Park, Hee Soo Kyung, Seung Hoon Baek; J Korean Soc Fract 2002;15(2):271-277. Published online April 30, 2002; DOI: https://doi.org/10.12671/jksf.2002.15.2.271

Abstract PDF: PURPOSE
To investigate whether injection of calcium sulfate salt powder could be used to facilitate consolidation of early & fast distraction osteogenesis.
MATERIALS AND METHODS
Group I was experimental group and Groups II and III were controls. After 3 days of latency period, a small distractor was distracted for a total of 8 mm for 4 days. Calcium sulfate salt powder suspended in carboxymethylcellulose(CMC) solution was injected, whereas CMC media alone was injected in one control group and without intervention in the other control group. Plain radiographs were taken on every weeks. We assesed the bone mineral density(BMD) at 3 and 6 weeks and %BMD was calculated. The rabbits were sacrificed at 6 weeks for histologic examination.
RESULTS
In radiography, the distracted area was consolidated in the experimental group but not in control groups. The % BMD of the experimental group was significantly greater than that of control groups at 6 weeks(p<0.01). In histologic examination, greater amount of newly formed bone was noted in the distraction zone of the experimental group, compared to two control groups.
CONCLUSION
Implantation of calcium sulfate powder can accelerate consolidation in distraction osteogenesis in rabbits.

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Complications and Affecting Factors for Intracapsular Femoral Neck Fractures Treated by Multiple Pinning: Sung Jung Kim, Shin Yoon Kim, Gi Bong Cha, Chang Wug Oh, Il Hyung Park, Joo Chul Ihn; J Korean Soc Fract 2002;15(2):201-208. Published online April 30, 2002; DOI: https://doi.org/10.12671/jksf.2002.15.2.201

Abstract PDF

PURPOSE
To investigate the relationship between the complications of intracapsular femoral neck fractures treated by multiple pinning and several affecting factors.
MATERIALS AND METHODS
Sixty-eight patients with intracapsular femoral neck fractures were treated by multiple pinning from March 1993 to January 2000 and followed at more than one year. Relationship between the complications such as failure of union, collapse of femoral head due to osteonecrosis of femoral head and several affecting factors including displacement of fracture according to Garden stage, state of reduction, position of screws, time interval from injury to operation, and fracture level were analyzed. The Fisher exact test, chi-square test, and multivariate logistic regression analysis were used to find the relevant factors influencing incidence of complications. Statistical significance was set at p < 0.05.
RESULTS
Position of screw was the most important single factor affecting the results of treatment of intracapsular femoral neck fracture (p=0.046). Moreover, the Garden stage and position of screw were revealed affecting the incidence of complications together with other factors (each p value was 0.028 and 0.027).
CONCLUSION
We considered that satisfactory position of screw was important to reduce complications after multiple pinning for intracapsular femoral neck fracture. And the results of operation also seemed to closely relate with multiple factors including Garden stage and status of reduction.

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Factors Predicting Complications after Internal Fixation of Femoral Neck Fractures
Tae-Ho Kim, Jong-Oh Kim, Sung-Sik Kang
Journal of the Korean Fracture Society.2009; 22(2): 79. CrossRef

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Treatment of distal tibia metaphyseal fractures by percutaneous plate osteosynthesis: Chang Wug Oh, Joo Chul In, Seong Man Lee; J Korean Soc Fract 2002;15(2):185-191. Published online April 30, 2002; DOI: https://doi.org/10.12671/jksf.2002.15.2.185

Abstract PDF: PURPOSE
We retrospectively reviewed the outcomes and efficacy of the percutaneous plate osteosynthesis for the distal tibia metaphyseal fracture.
MATERIALS AND METHODS
Twenty-one patients suffering from fractures of the distal tibial metaphysis, with or without minimally displaced extension into the ankle joint, were treated by percutaneous plate osteosynthesis with narrow LC-DCP. According to the AO/OTA classification, 17 fractures had no articular involvement (A1=8, A2=6, A3=3) while 4 included intraarticlar extension (C1=4).
RESULTS
At the final follow-ups(mean=20months), all the fractures healed without second procedures and the mean union time was 15.2 weeks. Only one patient had a malunion of rotational deformity due to inadequate prebending of plate, but there were no angular deformities over 5 degrees nor any shortenings of more than 1cm. There were no deep infections, nor any soft tissue compromise. Three patients had a partial limitation of ankle motion, but all the patients had excellent or satisfactory ankle function with mean OMA score of 89.1%.
CONCLUSION
Percutaneous plate osteosynthesis is a safe and worthwhile method of managing distal tibia metaphyseal fracture while avoiding some of the complications associated with conventional open plating methods.

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Selective treatment for completely displaced supracondylar fractures of the humerus in children: Chang Wug Oh, Byung Chul Park, Young Woo Kim; J Korean Soc Fract 2001;14(3):534-540. Published online July 31, 2001; DOI: https://doi.org/10.12671/jksf.2001.14.3.534

Abstract PDF: PURPOSE
This retrospective study was performed to know the clinical results after closed reduction and open reduction for completely displaced supracondylar fractures of distal humerus in children.
MATERIALS AND METHODS
Twenty-eight cases of this injury at the mean age of 6.4 (range 21- 138 months), have been followed up over the minimum of one year. The types according to the position of displacement were 15 in posteromedial, and 13 in posterolateral displacement. There were 4 cases of associated nerve palsies (3;median, 1; radial). We tried the closed reduction (17 cases), but open reduction (11 cases) was indicated in irreducible cases with or without severe swelling. Then, the fractures were stabilized by percutaneous K-wires with lateral (23 cases) or cross pinning (5 cases). The differences of Baumann's angle, humero-ulnar angle, and elbow motion to uninjured side were calculated, and Flynn's criteria was used for evaluation.
RESULTS
All fractures were united without any infection or soft tissue compromise. The symptoms of injured nerve recovered within 8 weeks. According to Flynn's cirteria, results were excellent in eleven, good in 12, fair in 2, and poor in 3. The rates of satisfactory results over good were similiar between closed and open reduction, and the other factors including age and type of displacement were not meaningful. The mean Baumann's angle was 8.7 in closed and 6.6 in open reduction group. None of the patients showed restricted elbow motion above 10 degrees, even in 3 cases of hypertrophic scars in the group of open reduction.
CONCLUSION
The selective use of open reduction in completely displced supracondylar fractures of distal humerus in children, would show results as good as closed reduction.

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Retrograde Flexible Intramedullary Nailing of Pediatric Femur Fractures: Chang Wug Oh, Byung Chul Park, Hyung Jin Park; J Korean Soc Fract 2001;14(2):272-277. Published online April 30, 2001; DOI: https://doi.org/10.12671/jksf.2001.14.2.272

Abstract PDF

PURPOSE
This study was designed to evaluate the clinical effectiveness including bone union, leg length discrepancy, after retrograde flexible intramedullary nailing for pediatric femoral fractures. MATERIAL AND METHOD: Nineteen cases (18 patients) with femur fracture at the age of 4 to 10 years (mean age 6.7) have been followed up over the minimum of one year. Under imaging intensifier, the fracture was temporarily reduced with manual traction, and 1 or 2 flexible nails were inserted at medial and lateral side of distal femur above the distal epiphysis. After two weeks of immobilization with long leg splint, joint motion was permitted. At 6-8 weeks, partial weight bearing was permitted, and at 10- 12 weeks, full weight bearing was permitted.
RESULTS
Time to radiologic union averaged 10.9 weeks. Limb length discrepancy ranged from 7mm of shortening to 6mm of overgrowth(mean ; 1.1mm of overgrowth), but there was no severe limb length discrepancy over 10mm. As another complications, there were one case of limited motion of knee joint and one case of broken nail.
CONCLUSION
We found that retrograde flexible intramedullary nailing is a safe, effective treatment for acute femoral shaft fractures in skeletally immature patients.

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Treatment of Femoral Shaft Fracture with Interlocking Humeral Nail in Older Children and Adolescent
Kun-Bo Park, Hoon Park, Hyun-Woo Kim, Hui-Wan Park, Jae Young Roh
Journal of the Korean Fracture Society.2010; 23(2): 206. CrossRef

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Difficulties in the treatment for ipsilateral concomitent femoral neck & shaft fractures: Chang Wug Oh, Shin Yoon Kim, Hee Soo Kyung, Joo Chul Ihn, Hyung Tae So, Jong Min Lee, Ho Wook Wee; J Korean Soc Fract 2001;14(2):152-158. Published online April 30, 2001; DOI: https://doi.org/10.12671/jksf.2001.14.2.152

Abstract PDF

PURPOSE
This retrospective study was performed to know the difficulties and efficient methods of treatment after several types of operations for ipsilateral femoral neck and shaft fracture.
MATERIALS AND METHODS
Thirteen cases (12 patients) with ipsilateral femoral neck and shaft fracture at the mean age of 36.6(range 21-51), have been followed up over the minimum of one year. All the patients suffered from motor vehicle accidents(11 in dash-board injury), and most of patients associated with multiple injuries including other fractures. All of femoral neck fracture were same type in basicervical area and 4 of them were missed initially. According to the classification of femoral shaft fractures, middle 1/3 fracture was most common in 10 cases and type C in 8 cases. In neck fractures, all cases were treated with multiple pinning, but in shaft fractures, 6 were treated by open plating, 5 by closed antegrade nailing, and 2 by retrograde nailing.
RESULTS
The mean union period was 12.1 weeks in neck fractures and 9.9 months in shaft fractures. In complications, there were 1 case of nonunion and 1 case of avascular necrosis in neck fractures, and 8 of delayed union, 3 of nonunion, and 2 of malunion, in shaft fractures. The methods of treatment had no influence on the results of this injury, but we had 1 failure in antegrade nailing prior to operation of neck fracture.
CONCLUSION
After operation of ipsilateral femoral neck and shaft fracture, the shaft fracture needed longer time of union and had many problems in spite of different methods. We suppose that many problems in shaft are affected not only by characteristic mechanism of injury, but also by multiple associated injury.

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Treatment for Concurrent Ipsilateral Femoral Neck and Shaft Fractures Using Reconstruction Nail with Temporary K-Wires
Sang-Joon Lee, Sang Hong Lee, Sang Ho Ha, Gwang-Chul Lee
Journal of the Korean Fracture Society.2015; 28(1): 23. CrossRef
Comparison of Operative Methods between Retrograde and Antegrade Nailing for Ipsilateral Femoral Shaft and Neck Fracture
Chang-Wug Oh, Jong-Keon Oh, Woo-Kie Min, Shin-Yoon Kim, Seung-Hoon Baek, Byung-Chul Park, Hyung-Soo Ahn, Tae-Gong Kim
Journal of the Korean Fracture Society.2007; 20(2): 135. CrossRef
Retrograde Intramedullary Nailing for the Treatment of Ipsilateral Femoral Shaft and Neck Fracture
Chang-Wug Oh, Jong-Keon Oh, Shin-Yoon Kim, Ki-Bong Cha, In-Ho Jeon, Byung-Chul Park, Woo-Kie Min, Tae-Gong Kim
The Journal of the Korean Orthopaedic Association.2007; 42(3): 380. CrossRef

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Bicondylar Tibial Plateau Fractures Treated with Hybrid-Ring External Fixator: Chang Wug Oh, Hee Soo Kyung, Joo Chul Ihn, Byung Chul Park, Young Chul Choi; J Korean Soc Fract 2000;13(4):877-883. Published online October 31, 2000; DOI: https://doi.org/10.12671/jksf.2000.13.4.877

Abstract PDF

PURPOSE
This study was designed to evaluate the indirect reduction or limited internal fixation with hybrid external fixation for bicondylar fractures of proximal tibia. MATERIALS & METHODS: Twenty-two cases (mean age; 49) proximal tibial fractures have been treated, including 7, type V and 15, type VI. After reconstruction of articular surface, the hybrid fixation was applied at the condyle and shaft with or without limited internal fixation by cannulated screw or one-third plate. We permitted early ROM exercise of knee and partial weight-bearing about 4 weeks after operation.
RESULTS
Time to union averaged 15.6 weeeks(range ; 11-20 weeks). There were 4 cases of nonunion including three cases of early bone graft for severe comminution and one infection. Functional scoring revealed 5 excellent, 12 good, 3 fair and 2 poor results. 18 out of 22 cases had good or excellent result in anatomical grading. The mean range of knee motion was 116 degrees(from 4.1 to 120 degrees). In complications, there were two cases of malunion, one deep infection, and one pin-site infection, but soft tissue compromise such as skin necrosis was not happened.
CONCLUSION
The indirect reduction or limited internal fixation with hybrid external fixation for bicondylar fractures of proximal tibia have advantages of anatomic, stable fixation, early mobilization and less soft tissue dissection, so good results of knee function can be accomplished.

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Dual Plate Fixation Compared with Hybrid External Fixator Application for Complex Tibial Plateau Fractures
Jae-Sung Lee, Yong-Beom Park, Han-Jun Lee
Journal of the Korean Fracture Society.2008; 21(2): 124. CrossRef

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The biomechanical Study on the Extraction Strengths of Iliosacral Lag Screws: Poong Taek Kim, Chang Wug Oh, Joo Chul Ihn, Jun Dae Kwun; J Korean Soc Fract 2000;13(4):696-701. Published online October 31, 2000; DOI: https://doi.org/10.12671/jksf.2000.13.4.696

Abstract PDF

PURPOSE
The purpose of this study is for the rigid fixation of the pelvic ring by quantifying and comparing the extraction strength of cancellous screws in the sacral ala and body.
MATERIALS AND METHODS
Six cadaveric human pelvis were obtained for test of the extraction strengths of three groups of 7.0mm cannulated cancellous screws: shortthreaded in the sacral ala, short-threaded in the sacral body, long-threaded in the sacral body. The extraction strengths of these groups were compared with each other.
RESULTS
The mean extraction strengths of short-threaded screws in the sacral ala, short-threaded screws in the sacral body and long-threaded screws in the sacral body were 10.26N, 25.85N and 48.37N respectively. The mean extraction strength of the long-threaded screws in the body was significantly greater than that of the shortthreaded screws in the ala and body. The mean extraction strength of the short-threaded screws in the body was greater than that of the short-threaded screws in the ala, but insignificant statistically.
CONCLUSION
In choosing iliosacral lag screws to stabilize the posterior pelvic ring disruption, superior fixation is achieved by inserting the long-threaded screw in the sacral body.

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Crescent Fracture-dislocation of Sacroiliac Joint: Affecting Factors of Operative Results
Hee-Soo Kim, Chang-Wug Oh, Poong-Taek Kim, Young-Soo Byun, Joo-Woo Kim, Byung-Chul Park, Woo-Kie Min, Hyun-Joo Lee
Journal of the Korean Fracture Society.2009; 22(2): 71. CrossRef

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Effect of Insertion of Bone Graft Substitutes on Consolidation of Distracted Callus: Changes of Radiography & Bone Mineral Density in the Tibia of Rabbits: Chang Wug Oh, Poong Taek Kim, Byung Chul Park, Hae Ryong Song, Il Hyung Park, Jun Ho Baek, Hyung Jin Park; J Korean Soc Fract 2000;13(4):687-695. Published online October 31, 2000; DOI: https://doi.org/10.12671/jksf.2000.13.4.687

Abstract PDF: PURPOSE
This study was designed to know the effect of calcium-sulfate and xenograft on the distracted callus after lengthening.
MATERIALS AND METHODS
We had operation of subperiosteal osteotomy and external fixation on the tibial diaphysis of young New Zealand White rabbits(2.0-2.5kg); after 5 days of latency period, 7 mm(1mm/day, 2 times/day) of tibial lengthening was reached in a week. At 1 week after lengthening, the 1st experimental group of 7 rabbits received a pellet of calcium sulfate(Osteoset , Wright medical, USA) in the distraction gap, and the 2nd experimental group of 7 rabbits received 5mm2 of xenogrfat(Lubboc ) in the distraction gap. But, the control group of 7 rabbits did not receive any of above materials. We compared three groups with the changes of radiographic findings at every week and bone mineral ratio(DEXA) at every two weeks.
RESULTS
The time to complete consolidation of distraction callus of both experimental group(calcium sulfate;14 weeks, xenograft; 15.4 weeks) was shorter than that of control group(16.9 weeks) in radiographic findings. Maximum value of bone mineral ratio of distraction callus was higher and the time to reach the highest value was also shortened in the both experimental group compared to control group.
CONCLUSION
By use of bone substitutes as like calcium sulfate or xenograft in the distraction callus with external fixator, it may be possible to shorten the consolidation period and the fixator-wearing period.

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Intramedullary pressure changes in reamed and unreamed nailing systems: an experimental study in cadaveric femoral bones: Chang Wug Oh, Joo Chul Ihn, Poong Taek Kim, Il Hyung Park, Sung Jung Kim, Chung Hyun Lee; J Korean Soc Fract 2000;13(3):631-637. Published online July 31, 2000; DOI: https://doi.org/10.12671/jksf.2000.13.3.631

Abstract PDF: PURPOSE
This study was designed to investigate whether intramedullary pressure is different in reamed compared with unreamed femoral nailing in cadeveric femoral bones. MATERIALS & METHODS: Eight pairs of fresh-frozen cadaveric femoral bones were studied. The diameter of isthmus was checked from 10mm to 14mm and the length of femur was checked from 35cm to 44cm. Intramedullary pressure was measured in the distal femoral shaft at the supracondylar region. Data were monitored in femoral nailing procedures. We utilized the AO universal nail(reamed) and AO unreamed femoral nail.
RESULTS
Intramedullary pressure increased in the reamed group to 423.8 mmHg(mean pressure) during reaming by starting reamer(9 mm) and in the unreamed group to 290 mmHg(mean pressure) during insertion of nails(p=0.001). In the unreamed groups, the next high intramedullary pressure is 136.6 mmHg during proximal reaming. A statistiscally significant difference in intramedullary pressure was found during the first reaming process in the reamed group compared with the proximal reaming process in the unreamed group(p=0.005).
CONCLUSION
The data indicate that the intramedullary pressure during unreamed nailing process is lower than reamed nailing process. So we can consider that the unreamed nailing in multiple fracture or pulmonary injured patients is a good modalities.

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Treatment Using Unreamed Intramedullary Nailing for Open Tibial Fractures: Chang Wug Oh, Hee Soo Kyung, Joo Chul Ihn, Byung Chul Park, Hyung Jin Park; J Korean Soc Fract 2000;13(2):281-288. Published online April 30, 2000; DOI: https://doi.org/10.12671/jksf.2000.13.2.281

Abstract PDF: PURPOSE
: this paper was to evaluate the treatment results in the viewpoint of bone union, union time, and complications including infection of unreamed nailing of pen tibial fractures.
MATERIALS AND METHODS
: We reviewed 46 open tibial shaft fractures that were treated with unreamed tibial nail. AO unreamed tibial nail was inserted after reduction under image intensifier control, Considering factors were severity of open wound, type and location of fractures.
RESULTS
: Average union time of open fractures was 21.3 weeks, nonunion rate was 2/46(4%). Average union tiome were 24.1, 19.7, 24, 24, 20 weeks in open grade I , II, IIIa, IIIb, IIIc fractures. According to the type of fractures, average union time were 20.4, 23.6, 25.7 weeks and nonunion rate were 0/22, 1/18, 1/6 in type A, B, C fractures. According to the level of fractures, average union time were 24.0, 20.0, 24.1 weeks in proximal, middle, and distal fractures. There was no signficant differences in average period of radiologic union, infection rate and nonunion rate according to fracture level, open grade, but longer union time and higher nonunion rate were observed in complex and comminuted fractures(p<0.05).
CONCLUSION
: With adequate soft tissue treatment, the unreamed intramedullary nailing can be a good treatment modality for open tibial shaft fractures, even to grade IIIB.

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Ilizarov/Hybrid-Ring External Fixation in the Management of Tibial Plafond Fractures: Chang Wug Oh, Byung Chul Park, Joo Chul Ihn, Sung Jung Kim, Hee Soo Kim, Saeng Guk Lee; J Korean Soc Fract 2000;13(2):244-251. Published online April 30, 2000; DOI: https://doi.org/10.12671/jksf.2000.13.2.244

Abstract PDF

PURPOSE
: To evaluate the results of the treatment of distal tibial fracture using ring or hybrid ring external fixator and to compare the results according to the influencing factors.
MATERIALS AND METHODS
: The authors analized 30 patients, 31 cases of distal tibial fracture who were treated by Ilizarov ring external fixator or hybrid ring external fixator at our hospital from May 1996 to August 1998 and were followed up over 1 year. The type of distal tibial fractrue were classified according to AO group, type A was 7 cases, and type C was 24(C1:5, C2:4, C3:15)cases. Restoration of articular surface of the distal tibia was performed through closed method or minimal invasive technique by minimal internal fixation with K-wire or screw. Then fixation of th distal tibia was done by ring external with multiple transfixing wire. Connection to the tibial shaft was done by Ilizarov ring external fixator(15 cases), or mono-external fixator(Dyna-Extor, 16 cases).
RESULTS
: By Tornetta's assessment of functional results, excellent was 5, good 19, fair 4 and poor 3cases. According to AO classification, the functional results of type A, 7cases were all above good results, among 24 cases of type C, 4cases of C1, 2 cases of C2, and 11 cases of C3 were above good results and there was no statistical difference between the results and the fracture type(P=0.024). One of 3 cases of poor functional results was open type C3 fracture and was complicated with osteomyelitis and refracture, and others two cases type C2 fracture which were complicated with malunion.
CONCLUSION
: The authors had a good results without soft tissue complication after the treatment of distal tibial fracture patients by Ilizarov ring external fixator or hybrid ring external fixator.

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Mid-term Results of Distal Tibial Fractures Treated with Ilizarov External Fixator
Suk Kyu Choo, Kyung Wook Nha, Hyoung Keun Oh, Dong Bong Lee
Journal of the Korean Fracture Society.2007; 20(4): 323. CrossRef

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Three-Dimensional Computed Tomography of Acetabular Fractures: Poong Taek Kim, Joo Chul Ihn, Chang Wug Oh, Seung Hoon Oh; J Korean Soc Fract 2000;13(1):46-51. Published online January 31, 2000; DOI: https://doi.org/10.12671/jksf.2000.13.1.46

Abstract PDF: PURPOSE
In the evaluation of acetebular fractures, conventional radiography is limited by distortion, magnification, and overlap of fracture fragments. Computed tomography(CT) has already been shown to be superior in this field. The purpose of this paper was to use 3D reformations for classification of acetabular fractures and planning of operation.
MATERIALS AND METHODS
From July 1994 to December 1998, we reviewed 40 acetabular fractures. We evaluated fractures as plain X-ray(inlet & outlet view, AP view, obturator foramen & illiac wing view), axial CT with 3 mm slices, and 3D reformations. We classified fractures by classification of Letournel.
RESULTS
32 cases of 40 cases were displaced fractures, We recognized fracture easily in 3D reformations. 12 cases were posteior wall fracture. 9 cases were both column frctures. We interpretated both column fractures difficultly in plain X-ray, but we had many informations about rotation & displacement of fracture fragment by 3D reformations. Undisplaced fracture was 8 cases. We interpretated undisplaced fracture difficultly in 3D reformations and distinguished difficultly from normall 3D reformations.
CONCLUSION
3D reformations were useful for analysis of complex displaced fracture but not useful for analysis of undisplaced fracture. Acetabular internal oblique view was useful for analysis of quadrilateral space & posterior wall fractures. Acetabular external view was useful for decision of surgical approach.

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Arterial Injuries associated with Fractures or Dislocations around the Knee: Chang Wug Oh, Joo Chul Ihn, Byung Chul Park, Il Hyung Park, Shin Yoon Kim, Hee Soo Kim; J Korean Soc Fract 1999;12(4):865-871. Published online October 31, 1999; DOI: https://doi.org/10.12671/jksf.1999.12.4.865

Abstract PDF: The purpose of this article is to delineate factors important in successful management and subsequent extremity function of the patient with arterial injury associated with fractures or dislocations around the knee. We reviewed 25 cases of arterial injury associated with fractures or dislocations around the knee which were treated at our hospital between 1994 and 1998. As long term results, the salvage rate of the lower limb was related to the extent of the soft tissue damage and the severity of infection, but there was no statistical difference according to the method of vascular surgery(p=0.645). Compared with the salvage rate of the lower limb according to the length of time from injury to vascular reanastomosis, there was no statistical difference between two groups of the patients who were operated within 12 hours and were operated during the time between 12 hours and 24 hours(p=0.084). In view of whether open or closed fractures were combined, 1 I cases(58%) among 19 cases of open fractures and 5 cases(83%) among S cases of close(1 fractures were able to salvage the lower limb, so it could contributes to the sdlvdge rate of the limb. Finally 16 cases(64%) among total 25 cases were able to salvage the lower limb, and its functional outcome was like followings : excellent results were found in 6 cases, fair results in 8 cases, poor results in 2 cases, and amputation in 9 cases(36%). In case of amputation, 3 cases were primarily amputated and 6 cases were amputated secondary to vascular surgery . As long term results, whether open or closed fractures were combined, the teverity of the infection and the extent of the soft tissue necrosis were the factors influencing on the falvage rate of the lower limb. Other factors, such as the difference of ischemic time within 24 hours interval, the site and the method of management of the fractures and the vascular injuries and whether fasciotomy was performed or not were not important factors influencing on the salvage rate of the lower limb.

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