Loss of fixation of the volar lunate facet fragment in fractures of the distal part of the radius.
Harness NG, Jupiter JB, Orbay JL, Raskin KB, Fernandez DL. Loss of fixation of the volar lunate facet fragment in fractures of the distal part of the radius. J Bone Joint Surg Am. 2004 Sep; 86(9):1900-8.