The flexor carpi radialis brevis muscle: an anomalous flexor of the wrist and hand. A case report.

The incidental finding of an aberrant wrist flexor is reported. This anomalous muscle was identified during surgical reconstruction for a distal radius fracture malunion. Distal and proximal dissection showed an independent, well-formed muscle belly with no interconnections to adjacent structures. A review of the literature yielded a report of these findings in cadaveric specimens; here we give a description in a living person.