Carpometacarpal and metacarpophalangeal joint collapse is associated with increased pain but not functional impairment in persons with thumb carpometacarpal osteoarthritis

Due to the complex shape of the carpometacarpal (CMC) joint, a fixed joint collapse deformity of the thumb CMC (CMC1) and metacarpophalangeal (MCP1) joint can present in advanced stages of CMC1 osteoarthritis (OA), resulting in adduction of the first metacarpal (MC1) and hyperextension of the MCP1.

Source: Journal of Hand Therapy - September 2, 2020 Category: Rehabilitation Authors: Vicky Duong, Sarah R. Robbins, Leticia A. Deveza, Anne Wajon, Ray Jongs, Elisabet Hagert, David J. Hunter Source Type: research