Introduction
Description
N.D. presented at 8 weeks of age because of concern over her small right thumb. She was unable to actively flex or oppose this thumb, and the first carpometacarpal joint was unstable. Radiographs showed a hypoplastic digit with undeveloped carpometacarpal joint (Fig. 1). The remainder of her examination showed normal findings.
Figure 1.
Radiograph of N.D. preoperatively, demonstrating thumb hypoplasia and an unstable carpometacarpal joint.
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