Abstract:

The most common carpal instability is the scapholunate dissociation (carpal instability dissociative: C.I.D.) with dorsal intercalated segment instability (D.I.S.I.), with the most significant element being the flexion of the scaphoid bone (rotary subluxation). Rupture of the scapholunate ligament was formerly believed to be the prerequisite for the dissociation. However, three findings contradict this theory.

Authors:

Giorgio A. Brunelli, M.D., Brescia University Medical School, Brescia, Italy; Giovanni R. Brunelli, M.D., Spedali Civili di Brescia, Brescia, Italy

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