Metacarpal Neck Osteochondroma: An Atypical Cause of "Trigger Finger"

Jonathan Layne; Maximilian A Meyer; Louis W Catalano 3rd

doi:10.1016/j.jhsg.2023.03.010

Metacarpal Neck Osteochondroma: An Atypical Cause of "Trigger Finger"

J Hand Surg Glob Online. 2023 Apr 18;5(4):463-466. doi: 10.1016/j.jhsg.2023.03.010. eCollection 2023 Jul.

Authors

Jonathan Layne¹, Maximilian A Meyer¹, Louis W Catalano 3rd¹

Affiliation

¹ Department of Orthopedic Surgery, University of Colorado School of Medicine, Aurora, CO.

Abstract

"Locking" of the digits is a relatively common patient complaint in hand surgery. Typically, this phenomenon arises from either triggering of tendons at the A1 pulley or subluxation of tendons around the metacarpal head. Although trigger digit and sagittal band injury comprise most diagnoses, clinicians must be aware of rarer entities that alter the underlying osseous anatomy and predispose the digits to "locking." Here, we present a case of metacarpal neck osteochondroma causing subluxation of the index metacarpophalangeal joint radial collateral ligament.

Keywords: Locking; MCP joint; Metacarpal; Osteochondroma; Trigger finger.

Publication types

Case Reports