The knee joint is a very stable joint unlike the shoulder, which is an aerobatic joint, suspended and controlled to a great degree by muscle. The knee can be injured by compression and twisting stresses as well as over-extension. It is common for the ligaments and meniscus (cartilage) to take this abuse. Micro tearing and inflammation can occur, which then leads to scar tissue formation and pain.  However, the knee is often just the victim of improper force distribution through the lower extremities.  It gets overloaded because other muscles and joints aren’t working properly.  Weakness and dysfunction in connected regions such as the core, hip, calf, and foot are often primary causal factors for knee injury.  Restoring function to these other regions is essential in addition to assessment of the knee.