"No bony injury seen": radial head dislocation

Role of the interosseous membrane and annular ligament in stabilizing the proximal radial head

“…Most reports on radial head dislocation focus on its occurrence in children, 9,11 especially in conjunction with a Monteggia fracture. However, radial head dislocation without any bone injury has been reported in both children 2,8,22 and adults. 3,4,14,18,20 The specific purpose of this study was to determine the contributions of the annular ligament and the proximal, central, and distal bands of the interosseous membrane of the forearm in preventing transverse dislocation of the radius.…”