Journal of Musculoskeletal Trauma

Flexible Intramedullary Pin Fixation of Both Forearm Bone Fractures in Children: Young Jin Sohn, Yong Woon Shin, Hyung Jin Chung, Sang lim Lee, Jae Kwang Yum, Yerl Bo Sung, Jong Kuk An, Eul O Choi; J Korean Fract Soc 2006;19(2):271-276. Published online April 30, 2006; DOI: https://doi.org/10.12671/jkfs.2006.19.2.271

Abstract: PURPOSE
To evaluate the efficacy of Flexible intramedullary pin fixation in pediatric forearm diaphyseal fractures.
MATERIALS AND METHODS
In this retrospective study, we reviewed 15 cases of forearm diaphyseal fractures operated using flexible intra-medullary nail fixation technique between January 2000 and December 2004. Of these 15 children, there were 11 boys and 4 girls with an average age of 11.6 years (range, 7~15 years). The implants were introduced in the distal radius and proximal ulna in all patients. An average duration of fixation was 5.3 months in the radius, 4.7 months in the ulna. After operation, all patient were applied with a long arm cast and the duration of immobilization was 5.2 weeks (range, 4~6 weeks) on average.
RESULTS
All fractures in this series healed with normal range of supination (average 80.0) and pronation (average, 71.6 degrees). Average operation time including anesthesia was 123 minutes and hospital stay was 5.4 days. Time to union was 8.4 weeks on average. Range of motion and functional results were satisfactory in all cases. There were one case of incomplete ulnar nerve injury and two cases of refracture which were treated conservatively without any permanent complication.
CONCLUSION
Flexible intramedullary pin fixation technique is a good method in case of unstable displaced fracture and difficult or failed closed treatment.

Reconstruction of the coronoid process using a graft from the olecranon of the same side for chronic posterior dislocation of the elbow: Jin Ho Kim, Seung Taek Song, Young Jin Sohn; J Korean Soc Fract 2002;15(3):410-413. Published online July 31, 2002; DOI: https://doi.org/10.12671/jksf.2002.15.3.410

Abstract PDF: It is reported when posterior dislocation of the elbow with the fracture of the coronoid process is occurred, if they can 't achieve the reduction of coronoid process, the patient would have the elbow instability. That is required to open reduction of coronoid process. Limitation of the elbow motion and persistent posterior dislocation of the elbow result from failure of reduction of coronoid process in acute injury. That patients have been treated by distraction arthroplasty, total elbow replacement, arthrodesis, and coronoid process reconstruction. We experienced one case that had a excellent result from reconstruction of the coronoid process using a graft from the olecranon of same side in 28 years old man.

Reconstruction of Neglected Traumatic Radial Head Dislocation in Children: Dong Yeon Lee, Tae Joon Cho, In Ho Choi, Chin Youb Chung, Young Jin Sohn; J Korean Soc Fract 2000;13(4):1024-1032. Published online October 31, 2000; DOI: https://doi.org/10.12671/jksf.2000.13.4.1024

Abstract PDF: PURPOSE
The purpose of this study is to evaluate the clinical result of surgical reconstruction of the old traumatic radial head dislocation in children, and to delineate the optimal surgical procedure for it.
MATERIALS AND METHODS
Fifteen cases of the old traumatic radial head dislocation were included in this study, which had surgical reconstruction at the age of 15 years or less. Preoperative and postoperative clinical symptom, range of joint motion, and radiologic findings were reviewed. Reconstructions were performed by combination of various procedures, and the advantages and disadvanges of each procedures were analyzed.
RESULTS
All the preoperative complaints were relieved by the operation. In twelve cases out of 15, the radial head reduction was well maintained. The reasons for the loss of reduction were non-union of ulnar osteotomy site, and the neglected angular deformity at the proximal radius. Although forearm pronation was decreased in most cases, they did not affect most of the daily activities except in cases where the radioulnar osseocartilaginous bridge were complicated.
CONCLUSION
Our results justify the surgical reconstruction of neglected traumatic radial head dislocations in children. Complete clearing of radiocapitellar joint, accurate bony realignment and rigid fixation, appropriate annular ligament reconstruction, and temporary fixation with transcapitellar pin may ensure satisfactory result.

Bioresorbable Implant Fixation for the Treatment of Radial Head and Neck Fractures: Coo Hyun Baek, Young Jin Sohn, Choon ki Lee, Moon Sang Chung; J Korean Soc Fract 1998;11(1):70-77. Published online January 31, 1998; DOI: https://doi.org/10.12671/jksf.1998.11.1.70

Abstract PDF: Between March 1988 and March 1995, 10 patients with displaced Mason type II, type III, or type IV fracture of the radial head or neck were treated by open reduction and internal fixation using bioresorbable pins. The average age of the patients was 38 years (22 to 70), and average follow-up period eas 14 months (12 to 18). There were 4 type II, 4 type III, and 2 type IV fractures. According to the functional rating system of Broberg and Morrey, the clinical results were reviewed at an average follow-up of 14 months. The functional results were 4 excellent, 5 good, and 1 fair. Fixation of displaced radial head or neck fracture using bioresorbable pins, was considered as one of the good methods.

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