Hemi-Hamate Arthroplasty Provides Functional Reconstruction of Acute and Chronic Proximal Interphalangeal Fracture–Dislocations

Purpose Hemi-hamate resurfacing arthroplasty is a treatment alternative for the management of severe acute and chronic dorsal proximal interphalangeal (PIP) fracture–dislocations. This study was designed to determine whether this procedure would successfully restore function after such injuries. Methods Hemi-hamate reconstructions were performed on 33 patients (mean age, 34 years) who presented to 1 hand surgery practice with dorsal PIP fracture–dislocations. Eligible patients experienced unstable dislocations with comminuted metaphyseal fractures involving at least 50% of the volar middle phalangeal surface that was not amenable to open reduction and internal fixation. We evaluated 22 patients with 14 acute (