Journal of Musculoskeletal Trauma

Jun Dong Chang

9 Articles

Analysis of the Fixation Failure in Intertrochanteric Hip Fractures Treated with Hip Nailing: Jun Dong Chang, Tae Young Kim, Ji Hyo Hwang, Seul Ki Min, Je Hyun Yoo; J Korean Fract Soc 2012;25(3):169-176. Published online July 31, 2012; DOI: https://doi.org/10.12671/jkfs.2012.25.3.169

PURPOSE
To analyze the patterns of and risk factors for fixation failure after hip nailing in intertrochanteric (IT) hip fractures.
MATERIALS AND METHODS
Fourteen patients who sustained a fixation failure after hip nailing for IT hip fractures were enrolled in this study. The mean age at the index surgery was 74.5 years and the mean time to the fixation failure was 6.6 weeks. All of the serial radiographs up to the fixation failure and pre-operative 3-D computed tomography were analyzed.
RESULTS
According to AO classification, there were 7 stable fractures and 7 unstable ones. Of the total of 14 cases, 10 showed a comminution of the greater trochanter tip and incomplete anatomical reduction of the medial and anterior cortex at the fracture site. Of the 10 cases with appropriate position of the lag screw within the femoral head, 9 showed a high pertrochanteric fracture (HPF) pattern. The mechanism of the fixation failure was rotation of the femoral head in 7 of 9 cases with HPF and varus collapse of the proximal fragment in 4 of the other 5 cases.
CONCLUSION
The HPF pattern, the comminution of the greater trochanter tip, and incomplete reduction of the medial and anterior cortex may be additional risk factors of fixation failure after treating IT hip fractures with hip nailing in.

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Unstable Intertrochanteric Fracture Treated with ITST: A Comparative Study between Groups with and without Comminution of Greater Trochanter
Kyung-Sub Song, Sang-Ho Lee, Seong-Hun Jeong, Su-Keon Lee, Sung-Ha Hong
Journal of the Korean Fracture Society.2014; 27(1): 36. CrossRef

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Problems of Anterior External Fixation in Unstable Pelvic Ring Injury: Jun Dong Chang, Young Jin Seo, Yong Hyuck Choi; J Korean Fract Soc 2005;18(4):394-398. Published online October 31, 2005; DOI: https://doi.org/10.12671/jkfs.2005.18.4.394

Abstract PDF

PURPOSE
To determine the problems of anterior external fixators in unstable pelvic ring injuries.
MATERIALS AND METHODS
We reviewed 25 patients with an unstable pelvic ring injuries who had been treated with only anterior external fixator over one year follow-up. By Tile's classification, type B 14, type C 11 and the radiological results were evaluated preoperation, postoperation and bone union state. The clinical evaluation was done in termas of the residual pain, discrepency in limb length, rotational deformities, gait disturbance, neurologic deficiency.
RESULTS
In 25 patients with an unstable pelvic ring injuries, 18 (72%) patients were reducted and 3 (17%) patients of 25 were reduction failure at last follow up, they were all Tile type C. The residual pain was graded normal 3, mild 11, moderate 10, severe 1 respectively. The cases with discrepency in limb length and gait disturbance were 6 (all type C), 10 (type B 3, type C 7) respectively. The complication were 4 pin site infection, 3 pressure sore and 1 pyogenic hip arthritis.
CONCLUSION
Our results indicate that anterior external fixator should be limited to vitally unstable patients in acute resuscitative phase and cases without vertical displacement.

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Outcome of Surgical Treatment of AO Type C Pelvic Ring Injury
Do Hyeon Moon, Nam Ki Kim, Jun Sung Won, Jang Seok Choi, Dong Hyun Kim
Hip & Pelvis.2014; 26(4): 269. CrossRef
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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Value of Preoperative Bone Scan in Evaluation of Femur Shaft Fracture: Young Jin Seo, Soon eok Kwon, Jun Dong Chang; J Korean Fract Soc 2005;18(3):227-231. Published online July 31, 2005; DOI: https://doi.org/10.12671/jkfs.2005.18.3.227

Abstract PDF: PURPOSE
To evaluate the availability of bone scan as a preoperative study by analyzing patients who developed ipsilateral femoral neck fractures during intramedullary nailing for femoral shaft fractures.
MATERIALS AND METHODS
Among 28 patients who conducted preoperative bone scan before performing intramedullary nailing for femoral shaft fractures, three patients developed femoral neck fractures during the operation. We analyzed retrospectively the result of bone scan including clinical and radiological findings of three patients.
RESULTS
Among 28 patients, 7 showed hot uptake in femoral neck area compared to the unaffected side in preoperative bone scan; All 3 patients who developed femoral neck fractures during the operaion showed hot uptakein the area. Among 7 patients who showed hot uptake, there were no abnormalities in plain radiograph and computerized tomography of femoral neck area.
CONCLUSION
The risk of femoral neck fracture should be considered during the intramedullary nailing for femoral shaft fracture, if there was hot uptake in femoral neck area in preoperative bone scan.

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Adverse Effect of the Absorbable Rods in Treatment of the Radial Head & Neck Fractures: Weon Ik Lee, Jun Dong Chang, Soo Joong Choi, Byeong Kook Lee, Young Jin Seo, Chang Ju Lee; J Korean Soc Fract 2002;15(3):414-420. Published online July 31, 2002; DOI: https://doi.org/10.12671/jksf.2002.15.3.414

Abstract PDF: PURPOSE
We report complications occurred from 6 patients among 14 patients who received the operation for their radial head and neck fractures by using the absorbable rod made by poly-glycolic acid(PGA).
MATERIALS AND METHODS
We analyze the postoperative results of 14 patients who recieved fixation by absorbable rod for the radial head and neck fractures from March 1991 to March 2000. All of the fractures were are reducible and modified Mason 's type II.
RESULTS
After average 15 months follow up, flexion contracture was average 20 degrees and full flexion was average 130 degrees. Complications were occurred in 6 cases. Osteolysis was occurred in 3 cases and in 2 cases among theses 3 cases, radial head excision was performed. Synovitis was occured in other 3 cases and in one case joint fluid was drainaged from operation wound for 2 weeks and in other 2 cases, synovitis was progressed to arthritis.
CONCLUSION
The absorbable rod made of PGA in radial head and neck fracture have relatively high rate of adverse tissue responses. So surgeon should consider adverse tissue response of PGA. Development of more biocompatible absorbable and slow degrading material should be needed.

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Supracondylar Intramedullary Nail for Femoral Supracondylar Fracture following TKA: 3 Cases Report: Jun Dong Chang, Hyun Min Han, Suck Woo Kim, Won Ik Lee, Soo Joong Choi, Chang Ju Lee; J Korean Soc Fract 2000;13(4):891-896. Published online October 31, 2000; DOI: https://doi.org/10.12671/jksf.2000.13.4.891

Abstract PDF: A periprosthetic supracondylar femoral fracture is one of the complications of the total knee arthroplasty(TKA). The periprosthetic supracondylar femoral fracture after TKA occurs approximately 0.3% to 2.5% and various methods have been introduced to treat this fracture. We report three cases of supracondylar femoral fractures following TKA, with brief review of pertinent literatures, in which retrograde supracondylar intramedullary nail provided satisfactory results. In severe osteoporotic patient, firm fixation of the nail was obtained by using cement and early motion of the knee joint was possible. In addition, we found that the supracondylar intramedullary nail could be used without insertion difficulty in all PCL retaining TKA systems which were available in use in our country.

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Metacarpal Shaft Fracture Treated by Closed Reduction and Percutaneous Intramedullary K-wire Fixationv: Soo Joong Choi, Chang Kyun Lim, Ho Guen Chang, Jun Dong Chang, Chang Ju Lee; J Korean Soc Fract 1998;11(1):100-106. Published online January 31, 1998; DOI: https://doi.org/10.12671/jksf.1998.11.1.100

Abstract PDF: The metacarpal shaft fracture has been reported as a stable fracture relatively, but operative treatment is indicated when there happens reduction loss, or is in need of early exercise. Intramedullary K-wire fixation has been used for unstable transverse or long oblique diaphyseal fracture of the metacarpal bone. The fracture site is not opened and the K-wires are introduced under X-ray control. The techniques can stablize the fracture site and allow immediate exercise postoperatively. We experienced 9 cases of 4th metacarpal shaft fracture treated by percutaneous intramedullary K-wire frxation with modified technique. The K-wire was used one or two ezch metacarpal fracture. The types of fracture were 4cases of transverse, 3 of oblique, 2 of comminuted. The average clinical union period were 5 weeks. There were not severe complications in all cases.

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Epidemiology and treatment of The Fractures in Burned Patients: Ho Guen Chang, Woon Hwa Jeong, Ung Joo Lee, Jun Dong Chang, Won Ho Cho, Chang Ju Lee; J Korean Soc Fract 1996;9(4):1034-1038. Published online October 31, 1996; DOI: https://doi.org/10.12671/jksf.1996.9.4.1034

Abstract PDF: The fractures in the burned patients is more complicated mechanism. There are controversies in the treatment of the fractures in the burned patients. We analysed the fracture incidence, the type of burn, the mode of injury, the mean burn percentage, the fracture site and the results of treatment of the if fractures in 44 patients selected from 3300 burned patients in Hangang sacred-heart hospital during recent 5 years. The incidence of the fractures in the burned patients was 1.3%, the predominant type of the burn was flame burn(72.7%), the mean burn percentage was 28.7% of the total body surface. The mode of injury mainly consisted of fall down after burn(50%). The most common fracture site was thoracolumbar spine(11 cases). In 12 long bonr fractures, 5 cases(Tibia:3 case, Femur:2 case) were treated with operative method. But, the osteomyelitis was not developed in ail cases. We concluded that the operative treatment is recommended in severe burned fracture patients for pain relief, comfortable wound manage, rigid fixation and early exercise.

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Complications in Femur Shaft Fracture treated with Interlocking Intramedullary Nailing: Ho Geun Chang, Woon Hwa Jeong, Ung Joo Lee, Seo Joong Choi, Jun Dong Chang, Won Ho Cho, Chang Ju Lee; J Korean Soc Fract 1996;9(4):891-898. Published online October 31, 1996; DOI: https://doi.org/10.12671/jksf.1996.9.4.891

Abstract PDF: The interlocking IM nailing is one of the most commonly used treatment method of the femoral shaft fracture. Althrough it has many advantages, but various complications is reported including delayed union, nonunion, malunion, interlocking nail or screw breakage, joint stiffness and infection. In order to evaluate the complications we reviewed 38 cases in treated with interlocking IM nailing in femoral shaft fracture from january, 1991 to december, 1995 in Hangang Sacred-Heart hospital. The average follow up duration was 14 months (range ; 6 months to 38 months). The following results are obtained 1. There were 1 cases of nonunion. Nonunion was of no analytic significance in sex, age, the fracture site and associated fracture (P=0.186), but significant in segmental fracture (P=0.02). Because of the small number group, we considered that it would be necessary more clinical expenence. 2. There were 3 cases interlocking screw breakage, all of which were occured in proximal screw. Partial weight bearing was permitted average postoperation 4.3 months. Average duration between operation and screw breakage was 1.3 months, between operation and bone union was 11.7 months. 3. There was 1 case of interlocking nail breakage. we considered that it was resulted from usage of relatively small nail(11 mm) and postoperative early weight bearing(8 weeks).

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Treatment of Intercondrlar Fracture of Elbow using Y-Plate through Extraartieular Olecranon Osteotomy in the Posterior Approach: Ho Guen Chang, Sang Su Lee, Eung Ju Lee, Jun Dong Chang, Won Ho Cho, Chang Ju Lee; J Korean Soc Fract 1996;9(4):1118-1124. Published online October 31, 1996; DOI: https://doi.org/10.12671/jksf.1996.9.4.1118

Abstract PDF: Iniercondylar fractures of the distal humerus in adults are rare and notoriously difficult to treat. We treated 8 patients by open reduction and internal fixation using Y-plate with extraarticular olecranon osteotomy in posterior approach. L-shaped osteotomy was performed at the extraarticular portion of olecranon with triceps tendon insertian remained to proximal portion of it, using air-saw. The follow-up period ranged from 12 to 30 months with average of 19.7 months. The fractures were dassified according to AO classification. The results were evaluated using Jupiter et al grading system. 1) There was no loosening of fixation Cevice of humeral condyle and olecranon. 2) Niether delayed union nor nonunion of olecranon and humeral condyle were found. 3) Exellent grade was achieved in 4 patients(50%), three(38%) had good, and one(12%) poor. Flexion-extension arc ranged from 60 degree to 120 degree with mean of 98.8 degree. 4) Complications included postoperatile neuritis in one, myositis ossificance in one, and heterotopic bone in one patient. Authors would introduce the method and result of extraarticular olecranon osteotomy in posterior approach for the intercondylar fracture of distal humerus, as a new technique.

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