Finger Fractures: Bennett Fracture, Boxer's Fracture

Bennett Fracture

The Bennett fracture, first described by Edward Hallaran Bennett in 1882, is a two-part fracture/subluxation (or dislocation) of the base of the thumb metacarpal involving the volar (palmar) articular surface. This fracture type represents approximately 30% of all thumb metacarpal fractures and occurs when the thumb metacarpal is partially flexed and axially loaded. These are relatively common sports injuries.

Although the fracture fragment can vary in size, it always consists of the volar ulnar aspect of the metacarpal base. The abductor pollicis longus (APL) acts ...