Scapholunate Dissociation

Introduction Scapholunate dissociation, also called rotatory subluxation of the scaphoid and sometimes also known as the Terry Thomas sign. It involves a disruption of the scapholunate ligament resulting in instability. The scapholunate ligament is U shaped and divided into three compartments. A complete fear of the dorsal part, results in dissociation. The cause is usually trauma,…

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