Nonunion of the pisiform bone in a 9-year-old boy.

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Abstract

18. JBJS Case Connect. 2019 Dec;9(4):e0278. doi: 10.2106/JBJS.CC.18.00278. Locked Traumatic Pisiform Dislocation: A Case Report. Saglam F(1), Dagtas MZ(2), Sağlam S(3), Baysal O(1). Author information: (1)Department of Orthopedıcs and Traumatology, Marmara University Pendik Education and Research Hospital, İstanbul, Turkey. (2)Department of Orthopedıcs and Traumatology, Maltepe University, İstanbul, Turkey. (3)Department of Orthopedıcs and Traumatology, Duzce University, Duzce, Turkey. CASE: A 32-year-old man presented to the emergency department with several carpal bone fractures and a locked distal pisiform dislocation after trauma. Treatment consisted of open surgical and reduction, osteosynthesis with a single Kirschner wire, and ligament repair. The patient's functional outcome was excellent, and his Mayo wrist score was 90 at 36 months after injury. CONCLUSIONS: Pisiform dislocations may be difficult to diagnose because anteroposterior and lateral radiographs may not be sufficient to visualize the injury. A 30° semisupinated wrist x-ray and computed tomography can be helpful. A satisfactory clinical result may be achieved if distal pisiform dislocations are detected early and managed surgically with open reduction and ligament repair. DOI: 10.2106/JBJS.CC.18.00278