1. Drop sign of the elbow joint after surgical stabilization of an unstable simple posterolateral dislocation: natural course and contributing factors.
Rhyou IH, Lim KS, Kim KC, Lee JH, Ahn KB, Moon SC.
J Shoulder Elbow Surg. 2015 Jul;24(7):1081-9. doi: 10.1016/j.jse.2015.01.018. Epub 2015 Mar 29.