[Traumatic scapholunate instability of ligamentous origin]

A great deal of progress has been made in recent years with respect to understanding the normal and pathological anatomy of the wrist. A careful history and physical examination continued with a critical review of the standard radiographs, supplemented by additional studies as indicated, allow the astute clinician to identify specific patterns of instability and to formulate an effective treatment program for the patients. The most frequent type of ligamentous instability of the wrist was classical defined by Linscheid (1972) as "carpal injury in which a loss of normal alignment of the carpal bones develops early or late".