A boy playing soccer has suffered trauma to the medial meniscus from a blow to the lateral aspect of the knee and the knee has become unstable. What other structure is most likely to be injured (AIIMS May 2012)
|C||Anterior cruciate ligament|
· Meniscal tears are most common in young adults. Usually they results from a twisting strain applied to a flexed, weight-bearing leg during sport (e.g., football).
· A torn portion of meniscus may sometimes displace and become jammed between the femur and tibia in the centre of the joint - a 'bucket handle tear'. This may cause a blocking of extension - 'locking of the knee'.
· Medial meniscal tears produce prolonged loss of extension that can stretch and rupture the anterior cruciate ligament
· The anterior cruciate ligament is often torn as a result of a rapid direction change while running or as a result of some other type of violent twisting motion.