- The patella (knee cap) is located on the distal anterior femur.
- The patella articulates posteriorly with the femur, forming the patellofemoral joint.
- The articular cartilage on the posterior (underside) of the patella is the thickest articular cartilage in the human body.
- When degeneration of the articular cartilage of the patella occurs, it is called patellofemoral syndrome (aka as chondromalacia patella).
- The patella only articulates with the femur, never with the tibia or fibula.
- The patella functions to increase the leverage force of the quadriceps femoris musculature contraction by holding the quadriceps tendon farther from the mediolateral axis of motion at the knee joint.