Hüftwinkel

Hüftwinkel is a term used in orthopedics and biomechanics to describe the angle formed by certain anatomical landmarks of the hip joint. It is commonly assessed using radiographic imaging, such as X-rays. The most frequently measured hip angle is the acetabular angle, also known as the center-edge angle (CEA) or the Sharp angle. This angle is formed by a line drawn horizontally through the pelvis and a line drawn from the center of the femoral head to the superolateral rim of the acetabulum. A normal acetabular angle is generally considered to be between 20 and 40 degrees, though slight variations can exist.

Deviations from the normal range can indicate hip joint abnormalities. A decreased acetabular angle can suggest hip dysplasia, a condition where the acetabulum is too shallow to adequately cover the femoral head. This can lead to instability and an increased risk of hip dislocation or osteoarthritis. Conversely, an excessively large acetabular angle is less common but can be associated with other conditions.

Another angle sometimes discussed in relation to the hip is the neck-shaft angle of the femur. This angle is formed by the longitudinal axis of the femoral shaft and the longitudinal axis of the femoral neck. A normal adult neck-shaft angle is typically around 120-135 degrees. Variations like coxa valga (increased angle) or coxa vara (decreased angle) can affect biomechanics and hip health. Hüftwinkel measurements are crucial for diagnosis, treatment planning, and monitoring the progression of hip conditions.