Purpose: Most of the patients who have acute Monteggia fracture require surgical treatment. Open reduction and restoration of the alignment for the ulna, and early reduction of the radial head are the principles of treatment. The authors performed anatomic reduction and plate fixation of the ulna in acute Monteggia fractures and the aim of this study is to report the radiological and clinical results of the management. Methods: Medical records and imaging data of 13 patients who had only

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... l fixation of the ulna in acute Monteggia fracture were reviewed retrospectively. The mean age was 38.8 years and average follow-up period was 23.9 months. We evaluated the range of motion, Mayo elbow performance score (MEPS), Disabilities of the Arm, Shoulder and Hand (DASH) score and complications at the last follow-up. Bone union and reduction of the radial head were reviewed by assessing serial radiographs during the follow-up. Results: Bone union was obtained in all cases and radial heads were maintained their reduced position on the followup radiographs. The mean MEPS was 91.15 and the mean DASH score was 7.9 at the last follow-up. The mean elbow flexion was 136.5°, elbow extension was 1.2°, forearm pronation was 79°, and forearm supination was 71°. There was no specific complication during the follow-up and 3 patients had secondary surgery for plate removal by patients" request. Conclusion: Anatomical reduction and secure fixation of the ulnar fracture without manipulating radial head dislocation in the acute Monteggia fracture showed satisfactory outcome in this study. 다. 총 13명이 연구대상에 포함되었으며 남성 9명, 여성이 4명이었고 평균 연령은 38.8세(12-70세), 수상 후 수술까 지 평균 3.4일(1-11일)이 소요되었고, 평균 외래 추시 기 간은 23.9개월이었다. 수상 원인으로는 넘어짐에 의한 손 상 9예, 낙상에 의한 손상이 3예, 교통사고 1예였다. 수상 당시 단순 방사선 사진 소견에서 Bado 분류상 I형 8예, II 형 2예, III형 3예였다. 금속판 고정으로는 8예에서 잠김 압박 금속판(locking compression plate, LCP), 3예에서 역동적 압박 금속판 (dynamic compression plate)을 사용하였으며 각각 1예 에서 재건 금속판, 주두 잠김 압박 금속판을 이용하여 고정 하였다. 치료 결과에 대한 평가로 임상적으로는 최종 추시 당 시의 관절 운동 범위, Mayo 주관절 점수(Mayo elbow performance score, MEPS), Disabilities of the Arm, Shoulder and Hand (DASH) 점수 등을 분석하였고, 방