Hojo J, et al. - By using computed tomography (CT) to analyze the in vivo 3-dimensional movements in the distal radioulnar joint (DRUJ), researchers evaluated the wrist joints of healthy volunteers in extended and loaded states vs the unloaded state. During axial loading, palmar radioulnar ligaments were seen to be stretched, thereby suggesting that a fall on an outstretched hand could lead to a tear of the palmer ligament; as revealed by the 3-dimensional kinematic analysis. When the wrist joint was loaded in an extended position, the length of simulated radioulnar ligaments was seen to increase.