Knee Joint

The **knee joint** is the largest joint of the body. It actually consists of three articulations. The femoropatellar joint is found between the patella and the distal femur. The medial tibiofemoral joint and lateral tibiofemoral joint are located between the medial and lateral condyles of the femur and the medial and lateral condyles of the tibia. All of these articulations are enclosed within a single articular capsule. The knee functions as a hinge joint, allowing flexion and extension of the leg. This action is generated by both rolling and gliding motions of the femur on the tibia. In addition, some rotation of the leg is available when the knee is flexed, but not when extended. The knee is well constructed for weight bearing in its extended position, but is vulnerable to injuries associated with hyperextension, twisting, or blows to the medial or lateral side of the joint, particularly while weight bearing.



*LICENSES AND ATTRIBUTIONS CC licensed content, Shared previously Chapter 9. Authored by: OpenStax College. License: CC BY: Attribution. License Terms: Download for free at Download for free at http://cnx.org/contents/R3D4RG6w@4/Anatomy-of-Selected-Synovial-J.*