Metacarpal scaphoid distance

Last revised by Henry Knipe on 7 Dec 2024

The metacarpal scaphoid distance is a measure of the metacarpal subsidence post trapeziectomy and corresponds to the absolute scaphometacarpal space 1,2.

Measurement

The metacarpal scaphoid distance has been measured on both AP hand radiographs 3 and lateral thumb radiographs 1. It is the shortest distance between the most proximal aspect of the first metacarpal base and the most distal aspect of the scaphoid 1,3.

Interpretation

There is mixed data between the metacarpal scaphoid distance and outcomes besides complete scaphometacarpal abutment 2-4.

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