Scapholunate Advanced Collapse (SLAC Wrist)

Scapholunate advanced collapse (SLAC) describes a characteristic degenerative clinical wrist condition of progressive instability, deformity, and arthritis affecting the radiocarpal and midcarpal joints of the wrist. Specifically, the characteristic pattern of arthritic deformity and progressive instability occurs secondary to a long-term, chronic dissociation between the lunate and the scaphoid carpal bones. SLAC wrist is often the terminal and end-stage result from an untreated scapholunate interosseous ligament (SLIL) injury.[1][2][3]