The most common knee surgeries are carried out as a result of an ACL (anterior cruciate ligament) tear, a MCL (medial collateral ligament) tear or a torn meniscus. It is not uncommon for serious sports people to experience a combination of these or even all three. If you are having knee surgery that is for an ACL tear, MCL tear or torn meniscus then the following typical knee surgery recovery timeline provides a guide for your post-operative recovery.