The relative motion concept in acute and chronic boutonniere deformity: Invited commentary

Boutonniere deformity occurs following disruption of the finger's anatomic attachments between the extrinsic and the intrinsic tendon systems.1 This includes the central slip insertion of the extensor digitorum communis (EDC) at the proximal interphalangeal (PIP) joint as well as the overlying intrinsic fibrous support systems.1 The result is a frustrating conundrum for hand surgeons and therapists alike because of the significant morbidity encountered with disruption of these delicately balanced attachments interconnected with an important mobile fibrous support system.

Source: Journal of Hand Therapy - April 10, 2023 Category: Rehabilitation Authors: Wyndell Merritt Source Type: research