Journal of Musculoskeletal Trauma

Hong Moon Sohn

12 Articles

Comparison of Results between Minimally Invasive Plate Fixation and Antegrade Intramedullary Nailing of Recon-Type in Low-Energy Injury Distal Femoral Shaft Fractures: Hong Moon Sohn, Gwangchul Lee, Ba Rom Kim, Jung Soo Oh; J Korean Fract Soc 2024;37(2):87-94. Published online April 30, 2024; DOI: https://doi.org/10.12671/jkfs.2024.37.2.87

Abstract PDF: Purpose
This study compared the outcomes of minimally invasive plate osteosynthesis and antegrade intramedullary nailing for low-energy fracture of the distal femoral shaft.
Materials and Methods
A study was conducted on 30 patients who underwent surgery for low-energy fractures of the distal femoral shaft between January 2016 and April 2022. The study compared 15patients who underwent minimally invasive plate osteosynthesis (Group P) with 15 patients who underwent recon-type antegrade intramedullary nailing (Group N). We evaluated intraoperative blood loss, operative time, C-arm exposure time, bone density, final union status, anatomical reduction, and clinical evaluation. The complications were also examined, and statistical analysis was conducted to compare the two groups.
Results
The blood loss, surgery time, and C-arm time were similar in the two groups. The radiographic assessments and clinical evaluations were also similar in the two groups. The clinical results showed no difference between the groups. Group N had one case of nonunion and one case of delayed union, while Group P had one case of nonunion and one case of peri-prosthetic fracture.
Conclusion
Antegrade intramedullary nailing of the recon-type demonstrated comparable results to minimally invasive plate osteosynthesis. Hence, antegrade intramedullary nailing of the recon-type, which enhances stability by fixing the entire femur and providing additional fixation in the distal portion, is deemed appropriate for treating distal femoral shaft fractures.

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The Results of Two Stage Surgical Treatment of Pilon Fractures: Hong Moon Sohn, Jun Young Lee, Sang Ho Ha, Sang Hong Lee, Gwang Chul Lee, Kwang Hyo Seo; J Korean Fract Soc 2012;25(3):177-184. Published online July 31, 2012; DOI: https://doi.org/10.12671/jkfs.2012.25.3.177

PURPOSE
To report the good results of two-stage treatment in pilon fractures.
MATERIALS AND METHODS
A retrospective study of 23 patients among 30 patients with pilon fractures from March 2006 to November 2008, who underwent two-stage treatment of pilon fractures with a minimum of 24 months follow-up. The mean follow-up period was 28 months (24~41 months). In the first stage of the operation, open reduction of the articular surface and external fixation were performed after minimal incision. As the soft tissue healed, locking compression plate fixation was performed with the Minimally invasive plate osteosynthesis. Radiographic evaluation was graded by the criteria of Burwell and Charnley, and functional assessment of the ankle was evaluated by the American Orthopaedic Foot and Ankle Society (AOFAS) ankle-hindfoot score.
RESULTS
The fractures were united within 16 weeks (12~30 weeks). The radiologic results showed anatomical reduction in 18 cases and a mean AOFAS score of 81. The mean range of ankle motion was 44 degrees. There were four complications: 1 case of wound infection and 3 cases of ankle osteoarthritis.
CONCLUSION
Two-stage treatment of pilon fractures is a good treatment method because it is designed to obtain early anatomical reduction, definitive stable fixation, low rates of soft tissue complication, and good range of ankle motion.

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Current Concepts in Management of Pilon Fracture
Jun-Young Lee, Sang-Joon Lee
Journal of the Korean Fracture Society.2014; 27(2): 173. CrossRef

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Comparative Analysis of Minimally Invasive Plate Osteosynthesis Using Periarticular Plate and Intramedullary Nailing in Distal Tibial Metaphyseal Fractures: Gwang Chul Lee, Jun Young Lee, Sang Ho Ha, Hong Moon Sohn, Yi Kyu Park; J Korean Fract Soc 2012;25(1):20-25. Published online January 31, 2012; DOI: https://doi.org/10.12671/jkfs.2012.25.1.20

Abstract PDF

PURPOSE
To compare results between minimally invasive plate osteosynthesis using a periarticular plate and intramedullary nailing in distal tibial metaphyseal fractures in two treatment groups.
MATERIALS AND METHODS
Sixty-one cases of distal tibial metaphyseal fractures from December 2008 to December 2009 were evaluated. The minimal follow-up period was 12 months. Thirty patients treated by minimally invasive plate osteosynthesis using a periarticular plate were Group A; 31 patients treated by intramedullary nailing were Group B. We compared and analyzed the results of each group by radiological and clinical assessments.
RESULTS
The mean bony union time was 16.4 weeks in Group A and 17.2 weeks in Group B. The mean operation time was 45 minutes in Group A and 48 minutes in Group B. The mean radiation exposure times were 4.2 minutes and 4.8 minutes, respectively. VAS scores were 0.7 points and 0.5 points in each respective group. In Group A, the VAS score was 1.7 points when we applied pressure on the skin around the plate. The mean Olerud and Molander Ankle Score was 87.4 points and 86.3 points, respectively. A superficial wound infection occurred in 1 case in each group, and angular deformities more than 5 degrees occurred in 2 Group B cases.
CONCLUSION
No significant differences in results were observed between the two groups. However, a higher incidence of angular deformity was seen in the intramedullary nailing group. Therefore, we must be careful during surgery.

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Comparative Analysis of Minimally Invasive Plate Osteosynthesis and Intramedullary Nailing in the Treatment of the Distal Tibia Fractures
Ho-Min Lee, Young-Sung Kim, Jong-Pil Kim, Phil-Hyun Chung, Suk Kang, Kaung Suk Jo
Journal of the Korean Fracture Society.2018; 31(3): 94. CrossRef
A Comparison of the Results between Intramedullary Nailing and Minimally Invasive Plate Osteosynthesis in Distal Tibia Fractures
Chul-Hyun Park, Chi-Bum Choi, Bum-Jin Shim, Dong-Chul Lee, Oog-Jin Shon
Journal of the Korean Orthopaedic Association.2014; 49(4): 285. CrossRef

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Treatment of the Trimalleolar Fracture Using Posterolateral Approach: Minimum 2-year Follow Up Results: Gwang Chul Lee, Jun Young Lee, Sang Ho Ha, Jae Won You, Sang Hong Lee, Hong Moon Sohn, Ki Young Nam, Kwang Hyo Seo; J Korean Fract Soc 2011;24(4):328-334. Published online October 31, 2011; DOI: https://doi.org/10.12671/jkfs.2011.24.4.328

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PURPOSE
To analyze the long term follow up results of treatment with posterolateral approach and to investigate its usefulness in the patients of trimalleolar fracture with posterior fragment which is above 25% of articular involvement.
MATERIALS AND METHODS
There were 34 cases of trimalleolar fracture in our hospital from May 2004 to April 2008. We investigated 20 patients who underwent operation with the posterolateral approach and over-2 years follow up cases. The mean follow up period was 34 (24~58) months. Preoperative posterior malleolar fragment involved above 25% of articular surface in all cases and displaced more than 2 mm in 11 cases. We analyzed the radiologic type of posterior malleolar fragments and evaluated the function and pain through AOFAS score and complications.
RESULTS
All cases showed primary union at mean 13.1 weeks. The complications are that partial ankylosis result of soft tissue contracture is seen in 2 cases (10%) and post-traumatic arthritis is seen in 1 cases (5%) and 17 cases (85%) of all patients are showed excellent AOFAS score.
CONCLUSION
The posterolateral approach is a valuable method because that it enables us to easily reduction and internal fixation of the posterior malleolus and lateral malleolus at one time and the results are satisfied for a long time follow up.

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Outcomes of Immediate Operative Treatment of Ankle Trimalleolar Open Fractures
Jun-Young Lee, Yong-Jin Cho, Sin-Wook Kang, Yung-Min Cho, Hyun-Bai Choi
Journal of Korean Foot and Ankle Society.2020; 24(1): 25. CrossRef

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Intra-articular Calcaneal Fractures Treated with Open Reduction and Internal Fixation: A Comparative Study between Groups with and without Bone Graft: Hong Moon Sohn, Sang Ho Ha, Jun Young Lee, Sung Hwan Jo, Hoon Yang; J Korean Fract Soc 2010;23(2):180-186. Published online April 30, 2010; DOI: https://doi.org/10.12671/jkfs.2010.23.2.180

Abstract PDF

PURPOSE
This study compares the clinical results of open reduction and internal fixation with and without bone graft for the treatment of intra-articular calcaneal fractures.
MATERIALS AND METHODS
Twenty-five patients who had open reduction and internal fixation for intra-articular calcaneal fractures and available for at least 1 year of follow-up were included in this study. Fifteen cases were operated with bone graft. Period to bone union and functional evaluation score were compared between both groups with analysis of complications.
RESULTS
Bone union was achieved in all cases with average bone union time of 11.6 weeks and 12.8 weeks in group with and without bone graft respectively. Creighton-Nebraska Health Foundation (CNHF) functional score was 86.5 points and 80.3 points respectively. The period to bone union and the CNHF score in the comparison of two groups were statistically insignificant. Complications were observed in four cases of group without bone graft and 5 cases of group with bone graft.
CONCLUSION
This study indicates that bone graft does not play a significant role in bone union and functional outcome when intra-articular calcaneal fractures are treated with open reduction and internal fixation.

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Surgical Treatment for Displaced Intra-Articular Calcaneal Fractures
Chul Hyun Park, Oog Jin Shon
Journal of the Korean Fracture Society.2016; 29(3): 221. CrossRef

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Treatment of Intra-articular Calcaneal Fractures Using Minimally Invasive Sinus Tarsi Approach in Diabetic Patients: Hong Moon Sohn, Sang Ho Ha, Sang Hong Lee, Jun Young Lee, Jeong Ho Kim, Sang Jun Lee; J Korean Fract Soc 2008;21(3):195-199. Published online July 31, 2008; DOI: https://doi.org/10.12671/jkfs.2008.21.3.195

Abstract PDF: PURPOSE
Wound problems occur in 5~30% of intra-articular calcaneal fractures following operation. Diabetes mellitus, large incisions and abundant dissection can increase the risk of wound problems that may require skin graft or other additional care. The authors used minimally invasive technique to treat intra-articular calcaneal fractures in diabetic patients and evaluated the results and complications of this method. MATERIALS AND METHODS: Between January 2002 and July 2005, 12 patients with intra-articular calcaneal fractures who had underlying diabetes mellitus were treated using minimally invasive technique with a modified sinus tarsi approach. The patients had an average age of 47 years (39~67) and were followed an average of 19 months (13~32). The mean period between injury and operation was 8 days (5~14). Crutch assisted partial weight bearing was advised for an average of 7.3 weeks (6~9) and full weight bearing was allowed after average of 9.3 weeks (7~11).
RESULTS
According to AOFAS scale for ankle and hindfoot, patients had the following results: excellent - 1 patient (8%), good - 9 patients (75%), fair - 1 patient (8%), unsatisfied - 1 patient (8%). Bone union was achieved in all cases and there were no events of deep infection or skin necrosis.
CONCLUSION
Treating intra-articular calcaneal fractures by minimally invasive technique is an excellent operative method for patients with diabetes mellitus, as this method can minimize soft tissue incision and resulting deep infection and skin necrosis.

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The Comparison of Radiographic Parameters and Clinical Results after Operative Treatment of Displaced Intraarticular Calcaneal Fractures: Hong Moon Sohn, Jun Young Lee, Sang Ho Ha, Sueng Hwan Jo; J Korean Fract Soc 2007;20(3):227-232. Published online July 31, 2007; DOI: https://doi.org/10.12671/jkfs.2007.20.3.227

Abstract PDF

PURPOSE
To evaluate the relationship between radiographic parameters and clinical results after operative treatment of the displaced intra-articular calcaneal fractures.
MATERIALS AND METHODS
We analyzed 35 patients of unilateral displaced intraarticular calcaneal fractures who had operative treatment with minimum follow up of 1 year. At the last follow up, we measured the radiographic parameters including Bohler angle, Gissane angle, heel height, calcaneal length, talocalcaneal angle, talar declination angle, subtalar incongruity between normal and affected site. Clinical results were measured by Creighton-Nebraska Health Foundation Assessment Score (CNH). The correlation between the radiographic parameters and the clinical results were analysed by Pearson correlation method.
RESULTS
Among the all radiographic parameters we analyzed, only subtalar incongruity shows strong negative linear correlation with clinical results. The average difference of subtalar incongruity between normal and affected site was 0.54 mm (0~2.5) and the correlation coefficients with CNH score was -0.784 (p=0.002).
CONCLUSION
We suggest that the subtalar incongruity is significantly correlated with the clinical results after operative treatment of the displaced intraarticular calcaneal fractures.

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Results in Operative Treatment of Open Calcaneal Fracture
Ba Rom Kim, Jun Young Lee, Donghyuk Cha
Journal of Korean Foot and Ankle Society.2021; 25(3): 133. CrossRef
Measurement of Normal Calcaneus in Korean Cadavers: A Preliminary Report
Jung-Han Kim, Heui-Chul Gwak, Jeon-Gyo Kim, Yang Hwan Jung
Journal of Korean Foot and Ankle Society.2014; 18(1): 14. CrossRef

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Treatment of High-energy Distal Tibia Intraarticular Fractures with Two-staged Delayed Minimal Invasive Plate Osteosynthesis: Hong Moon Sohn, Jun Young Lee, Sang Ho Ha, Jae Won You, Sang Hong Lee, Kwang Chul Lee; J Korean Fract Soc 2007;20(1):19-25. Published online January 31, 2007; DOI: https://doi.org/10.12671/jkfs.2007.20.1.19

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PURPOSE
To evaluate the short-term results of two-staged delayed minimal invasive plate osteosynthesis in high-energy intraarticular fractures of the distal tibia.
MATERIALS AND METHODS
Thirteen patients, who underwent two-staged delayed minimal invasive plate osteosynthesis for intraarticular fractures of the distal tibia between January 2002 and July 2004, were followed for more than one year. The mean interval time between first stage and second stage of the procedures was 28.6 days (range, 14~34 days). By Ruedi-Allgower classification, there were two cases in type I, three cases in type II, and eight cases in type III. There were six cases in type B and seven cases in type C patients according to AO/OTA classification. Radiographs were graded by the criteria of Burwell and Charnley and ankle functions were graded by the criteria of Mast and Teipner. Union time and postoperative complications were also analysed.
RESULTS
Average union time was 16.9 weeks (range, 14~20 weeks) in twelve of the thirteen fractures, but there was one fracture resulting in soft tissue complication and infected nonunion. At the latest follow-up, review of the radiographic results showed that ten cases of fractures (77%) achieved an anatomic reduction, two cases (15%) achieved fair reduction and one case (8%) achieved a poor reduction. And clinical functional assessment showed that nine cases (69%) were good results, three cases were (23%) fair results and one case (8%) was poor result.
CONCLUSION
Two-staged delayed minimal invasive plate osteosynthesis is an excellent option for the treatment of high-energy intraarticular fractures of the distal tibia.

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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
Journal of the Korean Fracture Society.2010; 23(3): 289. 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
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

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Delayed Operative Treatment of Long Bone Fractures in Patients with Brain Injury: Hong Moon Sohn, Sang Ho Ha, Jun Young Lee, Young Kwan Lee; J Korean Fract Soc 2006;19(2):157-162. Published online April 30, 2006; DOI: https://doi.org/10.12671/jkfs.2006.19.2.157

Abstract

PURPOSE
To evaluate the postoperative progress and outcomes of bone injured patients with long bone fracture showing callus formation and deformity due to delayed surgical treatment.
MATERIALS AND METHODS
10 cases with more than 1 year follow up were chosen from 12 patients with long bone fracture whose surgical treatment was delayed due to brain injury. Exuberant callus formation and deformations were observed. Average delayed period was 6.7 weeks (4~10 weeks). Preoperative callus formation, shortening and angulation were evaluated using plain radiographs. Total operation time and transfusion amount were compared with that from operations done within 2 weeks following accident. Postoperative bone union was checked.
RESULTS
In all cases, preformed angulation and hypertrophic ossification made reduction difficult and this increased total operation time and transfusion amount but had no statistical importance. In patients with humerus and femur fractures accompanying brain injury, massive hypertrophic ossification was observed both in preoperative period and in postoperative period. Average bone union period was 13.5 weeks in humerus fractures, 17.9 weeks in femur fractures. The bone union period was shorter in subject group but had no statistical importance.
CONCLUSION
Early surgical treatment is essential to patients with long bone fracture accompanying brain injury but if early surgical treatment can not be done, proper immobilization to fracture site should be done.

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Alterations in Serum Levels of Receptor Activator of Nuclear Factor-κB Ligand and Osteoprotegerin in Patients with Head Injury and Fracture
Shin Young Park, Kuen Tak Suh, Chang Hoon Ryu, Seung Hun Woo, Jung Sub Lee, Seong-Gang Kim
Journal of the Korean Fracture Society.2008; 21(2): 145. CrossRef

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Treatment of Distal Femoral Shaft and Supracondylar Fracture with aRetrograde Intramedullary Nailing: Sang Hong Lee, Jun Young Lee, Sang Ho Ha, Hong Moon Sohn, Kwang Chul Lee; J Korean Fract Soc 2004;17(2):103-109. Published online April 30, 2004; DOI: https://doi.org/10.12671/jkfs.2004.17.2.103

Abstract PDF

PURPOSE
Retrograde intramedullary nailing has been recommended as one of the treatment options for the distal femoral fracture, particularly in patients who are obese, are pregnant, has sustained ipsilateral femoral neck fracture, have multiple injuries. However there are some disadvantage such as post-arthrotomy infection, knee joint stiffness. This paper is to evaluate the result and complication of treatment of distal femoral fracture with a retrograde intramedullary nailing.
MATERIALS AND METHODS
We reviewed 13 cases (distal femoral shaft fracture: 6 cases, supracondylar fracture: 7 cases) of the distal femoral fracture who had been treated with retrograde intramedullary nailing and follow up for more than 12 months from January 1999 to December 2001. The rate of bony union, range of motion of the knee, complications were evaluated.
RESULTS
The mean duration of bony union was 20 weeks (range, 16~25 weeks). A case of delayed union was developed. In 4 cases of 13 cases showed posterior angulation below 6 degree, which did not need further treatment. According to Saunder's criteria, excellent result was achieved in 8 patients, good result in 5 patients, respectively.
CONCLUSION
This study showed good clinical and radiological results of union with retrograde intramedullary nailing at the distal femoral fracture and ipsilateral multiple fracture

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Analysis of Risk Factors for Nonunion after Intramedullary Nailing of Femoral Shaft Fracture in Adult
Yong-Woon Shin, Yerl-Bo Sung, Jeong Yoon Choi, Minkyu Kim
Journal of the Korean Fracture Society.2011; 24(4): 313. 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

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Surgical Treatment for the Non-union of the Lateral Humeral Condyle Fracture using Closing Wedge Osteotomy and Bone Graft: Sang Ho Ha, Hong Moon Sohn, Jun Young Lee, Sun Jong Oh; J Korean Soc Fract 2003;16(3):379-384. Published online July 31, 2003; DOI: https://doi.org/10.12671/jksf.2003.16.3.379

Abstract PDF

PURPOSE
To evaluate the clinical results of the surgical treatment for established nonunion of lateral humeral condyle fracture using closing wedge osteotomy and bone graft.
MATERIALS AND METHODS
Six patients diagnosed as symptomatic established nonunion of lateral humeral condyle fracture and cubitus valgus deformity were reviewed retrospectively. The average age was 23 years old and mean follow up period was 32 months. We investigate the changes of the symptoms and radiographic findings, and determine the results by Oppenheim's criteria.
RESULTS
According to Oppenheim's criteria, 3 patients showed excellent, 2 good, 1 poor. Carrying angle is improved to 10.2 degrees and range of motion was decreased by mean 9 degrees. All of the patients' muscle weakness and pain were improved, and was achieved solid union at the last follow up.
CONCLUSION
In the treatment of symptomatic established lateral humeral fracture and cubitus valgus deformity, better functional and cosmetic results are anticipated by a closing wedge osteotomy and bone graft.

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In SituLate Metaphyseal Osteosynthesis for the Fractures of the Lateral Humeral Condyle in Children
Kun Bo Park, Seung Whan Lee, Hyun Woo Kim, Hui Wan Park, Ki Seok Lee
Journal of the Korean Fracture Society.2008; 21(2): 151. CrossRef

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Remodelling of Angular DeforMity after Femoral Shaft Fractures in Children: Young Bae Pyo, Sang Ho Ha, Hong Moon Sohn; J Korean Soc Fract 1998;11(1):116-122. Published online January 31, 1998; DOI: https://doi.org/10.12671/jksf.1998.11.1.116

Abstract PDF: The common sequelae after femoral shaft fractures in children are leg-length discrepancy, angular deformity and rotational deformity. Overgrowth after the conservative management of fractures has been clearly defined, and it has been reported that rotational deformities can remodel. The importance of angular deformity after fracture is less clear although it has been reported as many as 40% of cases. So, authors reviewed 15 children (16 cases) with unilaterral femoral shaft fractures who had more than 10 degrees angular deformity after conservative treatment and observed the remodelling of deformity both at the fracture site and the physes. after average follow up of 34 months, the results were as follows 1. The average correction was 84% of the initial angular deformity; the physes contributed more than the fracture site. 2. The anterior angulation remodelled better than the varus angulation. 3. Younger children remodelled better and the magnitude of the angulation influenced the degree of remodelling.

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