Anterior drawer, Lachman and pivot shift tests are commonly used for assessing anterior cruciate ligament (ACL). Relying only on a single test may result in missed diagnosis because some ACL scarring pattern may provide some degree of anterior stability. We present a 20-year old male with complete ACL rupture but positive pivot shift test only, MRI shows total ACL rupture and confirmed during arthroscopic reconstruction with scarring to posterior cruciate ligament. Thorough physical examination may help raise suspicion to ACL remnant scarring pattern in order not to miss ACL rupture in arthroscopy.
Materials and methods