Ligamentum Capitis Femoris A Pilot an Experimental Study | Biomedgrid

Ligamentum capitis femoris (syn. ligamentum teres, ligament of head of femur), connecting the acetabulum and the head of femur. This is one of the least studied anatomical elements of the human body. In order to clarify the functions of the ligamentum capitis femoris, external ligaments and abductor muscle group, we constructed a dynamic model of the hip joint. It was established that this anatomical element is involved in constraining the hip joint adduction and may locking the hip joint in the frontal plane, turning it into an analogue of a third-class lever. When the ligamentum capitis femoris is stretched and the abductor muscle group is tension, a load equal to twice the body weight is evenly distributed between the upper and lower hemispheres of the head of femur. The ligamentum capitis femoris function increases the steadiness of the orthostatic postures and unloads the muscle apparatus of the hip joint.