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Clin Should Elbow. 2019 Mar;22(1):37-39. English. Case Report. https://doi.org/10.5397/cise.2019.22.1.37
Weng HK , Chang WL , Yeh ML , Su WR , Hsu KL .
Department of Orthopedic Surgery, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan. dulendulen@gmail.com
Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, Tainan, Taiwan.
Division of Orthopedics, Department of Surgery, National Cheng Kung University Hospital Dou Liou Branch, College of Medicine, National Cheng Kung University, Yunlin, Taiwan.
Department of Biomedical Engineering, National Cheng Kung University, Tainan, Taiwan.
Division of Traumatology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan.
Abstract

Irreducible dislocation of the elbow is an uncommon event. We present the case of a posterolateral elbow dislocation after a fall injury in a 67-year-old woman. A closed reduction performed in the emergency department was unsuccessful since the limited passive range of motion resulted in difficulty to perform longitudinal traction and flexion. Computed tomography images showed that the posterolateral aspect of the capitellum was impacted by the tip of the coronoid process, thus appearing similar to the Hill-Sachs lesion in the humeral head. Subsequent open reduction of the elbow revealed the dislocation to be irreducible since the tip of the coronoid process had wedged into a triangular Hill-Sachs-like lesion in the capitellum. The joint was reduced by providing distal traction on the forearm, and main fragments were disengaged using digital pressure. At the 3-month follow-up, the patient reported no dislocations, and had an acceptable range of motion. Thus, we propose that to avoid iatrogenic injury to the joint or other nearby structures, irreducible dislocations should not be subjected to repeated manipulation.

Copyright © 2019. Korean Association of Medical Journal Editors.