WATSON / SCAPHOID SHIFT TEST FOR SL LIGAMENT RUPTURE OF THE WRIST The scapholunate ligament is a very strong ligament between the scaphoid and the lunate and important for the stability of the wrist. It can be injured by a fall or a sudden load on the wrist and can occur together with a distal radius or carpal bone fracture. When untreated, it can lead to a so-called DISI, which stands for dorsal intercalated segmental instability, which is a dissociation between the scaphoid and the lunate. Acc