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Title: Kinematic analysis of the distal radioulnar joint after a simulated progressive ulnar-sided wrist injury. Author: Gupta R, Allaire RB, Fornalski S, Osterman AL, Lee TQ. Journal: J Hand Surg Am; 2002 Sep; 27(5):854-62. PubMed ID: 12239676. Abstract: A kinematic analysis of a progressive, ulnar-sided wrist injury was performed using a cadaver model to study the static and dynamic stabilizers of the distal radioulnar joint with a 3-dimensional motion tracking system. Anatomically based loads were applied to achieve pronation and supination and then the specimens were evaluated after serial transection of the triangular fibrocartilage, the extensor carpi ulnaris sheath, and the ulnocarpal ligaments. Statistically significant increases in translation of the radius relative to the ulna occurred with sectioning of both the triangular fibrocartilage proper and the extensor carpi ulnaris tendon sheath. No significant change in position of the forearm could be appreciated with subsequent sectioning of the ulnocarpal ligaments. Our observations support the idea that the ulnocarpal ligaments do not need to be surgically reconstructed when there are serious injuries to the triangular fibrocartilage complex.[Abstract] [Full Text] [Related] [New Search]