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The hip joint is located in the pelvic girdle and consists of the acetabulum and proximal part of femur. This is a multiaxial ball-and-socket joint like the glenohumeral (shoulder) joint. The hip joint has a stronger labral rim combined with the ligament and capsule. Reinforcement by associated soft tissues provides good stability.
Leg Length Discrepancy LLD | Osteoarthritis | Total hip replacement
Leg Length Discrepancy LLD
Leg length discrepancy (LLD) is a common problem. Leg length can be measured from anterior superior iliac spine to the medial malleolus. The Trendelenburg's test is a physical strength exam of the hip abductor, mainly gluteus medius. Other problems include hip dislocation and fracture. Two types of conditions will give rise to total hip replacement, the avascular necrosis (AVN) and osteoarthritis (OA).

The outside elastic force and anchor surrounding the waist stabilize the hip joint. The hip support can relieve heavy weight-bearing from the thigh and hip muscle.