Hemi-hamate autograft arthroplasty for dorsal proximal interphalangeal fracture-dislocation: a case series of two patients

Abstract

Volar lip fractures of the base of the proximal interphalangeal joint (PIPJ) are triggered by axial loading and hyperextension injuries causing the volar plate to avulse with a ventral fragment of the base of the middle phalanx [1]. These fractures are commonly encountered during athletics and combat sports [1]. If more than 50% of the joint surface is involved, it is considered an unstable fracture [2]. Osteochondral grafts are preferably used to treat unstable fracture-dislocations [2]. Moreover, grafting is preferred in late presenters [3] compared to those who present early, where the fracture could be fixed with a higher success rate. Here, we report two cases of ventral fractures of the PIPJ managed with hemi-hamate osteochondral autografts.