Fig. 2
From: Subtle elbow instability associated with lateral epicondylitis
a The 2.1 mm widening of the radiocapitellar joint was identified in the varus stress view of a 38-year-old man (patient #5). b The radial head was shifted posteriorly in the posterolateral pivot shift test. c T2-weighted coronal magnetic resonance image showed rupture of the lateral collateral ligament. d Intraoperatively, the definite lateral and lateral ulnar collateral ligaments were not found, except for thin fibrous tissue. e The lateral ulnar collateral ligament was reconstructed with a tibialis anterior allograft