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How does the hip joint work?

The hip joint is a ball-in-socket joint, also known as an enarthrosis. The rounded head of the femur forms a ball, which then fits into the socket of the hip, which is called the acetabulum.

The hip forms the primary connection between the bones of the body's lower limbs and the body's axial skeleton of the trunk and pelvis.

The ilium, the ischium and the pubis - which are three pelvic bones - come together to form the acetabulum.

The joint may not be fully hardened (ossified) into bone until a person reaches the age of about 25, which is why it is important to detect and treat hip dysplasia early.

Both surfaces of the joint are covered by a strong, lubricated layer of articular, hyaline cartilage, which helps it move more smoothly. A rim that is called the labrum grips the head of the femur and secure it into the joint, which increases the depth of the acetabulum.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.