Anterior subluxation (hyperflexion strain)

–   The Posterior Ligament complex is disrupted. (30-50% can show delayed instability)

     
Posterior Ligament Strain Extension (left) and Flexion (Right)

This section written by:

LCDR Ron Boucher, MC, USN
LT Hugh McSwain, MC, USN

With some assistance from:

CDR Michael Puckett, MC, USN
ENS Robert Post, MC, USNR