The acetabulum is a concave, cup-shaped structure on the lateral aspect of the pelvis. It forms part of the hip joint, articulating with the head of the femur. Together, they create a ball-and-socket joint that allows for a wide range of motion, including flexion, extension, abduction, adduction, internal rotation, and external rotation. The acetabulum is a concave, cup-shaped structure located on the lateral side of the pelvis. It is formed by the fusion of three pelvic bones: the ilium, ischiu

The head of the femur is a smooth, spherical structure that forms the uppermost part of the femur. It is covered with articular cartilage, which facilitates smooth movement within the acetabulum of the pelvis. This articulation creates the ball-and-socket hip joint, allowing a wide range of motion. The head of the femur is connected to the femoral shaft by the neck of the femur, which angles downward and outward to distribute forces during weight-bearing activities. At the center of the femoral

🦴 AO Trauma NA Blended Course – Advanced Principles of Fracture Management 📅 April 9–11, 2026 | 📍 Bellevue, WA Take your fracture management skills to the next level! Building on the AO Basic Principles course, this advanced course dives into: • Complex fractures of the upper & lower extremities • Pelvis & acetabulum fractures • Fracture complications & polytrauma management Hands-on labs allow you to practice surgical techniques on artificial bones using preoperative planning and the latest