An unusual bifid first metacarpal

Abstract

Bifid first metacarpal is a common congenital anomaly. Here, we report an unusual case of bifid first metacarpal in a 13-year-old girl who presented with swan neck deformity of left thumb, a bony prominence on ulnar aspect of left thumb in the first web space and a bifid first metacarpal lacking its own epiphysis. The patient underwent surgery, resulting in complete functional recovery as well as cosmetic improvement of the left thumb.

Wassel's Type V Polydactyly with Plain Radiographic and CT Findings

“…Kumar recently reported plain radiography findings in a case of bifid first metacarpal in a 13-year-old girl, who presented with swan neck deformity of the left thumb. [ 9 ] To our knowledge, our case is the second case that has a swan neck deformity with bifid metacarpal. We also described the CT findings of the case.…”