Anterior cruciate: methods of physical examination.

Tear of the anterior cruciate ligament is a common, serious injury. Since the long-range consequences of uncorrected anterior cruciate incompetence are better understood, and surgical and rehabilitative measures improved, early accurate diagnosis is increasingly important. Besides a careful history, diagnosis requires the use of specific physical examination methods to reproduce the symptomatic subluxation (anterior shift or internal rotation) and to assess functional performance of the knee.