The hip joint is a simple ball-and-socket structure. The elements of the hip joint normally work together, and the joint moves freely and painlessly. The natural function of the hip joint can be disrupted by disease, arthritis, or injury. Hip pain, groin pain, muscle weakening, and reduced mobility are all possible outcomes. Joint replacements are being performed on a larger number of patients as individuals live longer lives and engage in more physical activity.
How does the Hip Work?
This ball and socket connection works similarly to a car’s ball joint, connecting the wheel to the axle and allowing you to turn in various directions while maintaining body support. The upper end of your thigh bone (femur) has a ball (femoral head) that fits into a socket (acetabulum). The ball is covered with cartilage and the socket is lined with cartilage, allowing the ball to move freely in the socket. You only get one layer of this cartilage in your lifetime, and it cannot heal itself if it is damaged or worn out.