Fig. 31From: The elbow: review of anatomy and common collateral ligament complex pathology using MRIPosterolateral rotatory instability, stage 3B. Coronal T1-weighted MRI (a) and coronal FS PD-weighted MRI (b) showing an acute proximal common avulsion of the lateral ulnar collateral ligament and radial collateral ligament (white arrows), an acute avulsion of the anterior bundle of the medial collateral ligament complex (white arrowheads), a radial head fracture (white asterisks), a partial tear of the proximal common extensor tendon (yellow arrows), and joint effusionBack to article page