HIP REPLACEMENT
The hip joint is the joint between the upper end of femur (thigh bone) and the pelvis. It is shaped like a ball (femoral head) in a socket (acetabulum). The ends of these bones (articulating surfaces) are lined by a smooth and tough but elastic layer of hyaline cartilage. The joint is enclosed by a covering called the capsule. This is lined on its inner surface by a layer of synovium which secretes synovial fluid into the joint. This fluid lubricates the joint and provides nourishment to the hyaline cartilage. The hip derives its stability from the shape of the bones, and strong capsulo-ligamentous soft tissues. Large muscles span the joint and provide the strength to the lower limb.
