Femur Knee

The knee joint capsule

As in all joints, the knee is also surrounded by a fibrous capsule enclosed by a synovial membrane, which produces a lubricating synovial fluid to facilitate the sliding of the knee bones: femur, tibia and patella.

The knee capsule is held together by ligaments that permit a wide range of movements. Its function is also to stabilise the knee when in standing and balancing positions.