13.
A 22 year old female presents to the clinic with a chief complaint of knee pain following a twisting injury while playing soccer 5 days ago.  The patient’s knee is swollen significantly and is unable to jump or run.  What special test would be the MOST appropriate to diagnose the injury?

1. Lachman’s test for anterior cruciate ligament.
2. Posterior drawer test for posterior cruciate ligament.
3. Active Lachman’s test for anterior cruciate ligament.
4. External Rotation Recurvatum Test for posterior cruciate ligament.

The correct answer is: (Click for answer)