Effect of Triangular Ligament Tears on the Distal Radioulnar Joint Instability and the Evaluation of 3 Clinical Tests: A Biomechanical Study
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چکیده
INTRODUCTION: The purpose of this cadaver study was to evaluate the effect of triangular ligament tears on distal radio-ulnar joint instability by motion analysis. The amount of the distal radius displacement against the ulnar head was measured during passive wrist motion to simulate daily activities of the hands, and three clinical tests for the evaluation of distal radio-ulnar joint instability; ulno-carpal stress test (Nakamura 1997), piano-key test (Cooney 1998) and DRUJ ballottement test (King 1996), were performed. For each measurement, the effect of forearm rotation was also analyzed.
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