Question

One reason for initial flexion of an above knee socket is to____

Answer 1

Initial flexion of an above knee socket helps to resist hyperextension and rotation of the extended knee, ensuring stability during motion. It involves the fibular collateral and posterior cruciate ligaments along with the femur to maintain proper knee joint function.

Step-by-step explanation:

One reason for initial flexion of an above knee socket is to resist hyperextension and rotation of the extended knee. This is supported by structures such as the femur, ligaments, and articulations that maintain knee stability during movement. For instance, the fibular collateral ligament resists hyperextension and rotation, and is connected from the lateral epicondyle of the femur to the head of the fibula. Moreover, the posterior cruciate ligament prevents anterior displacement of the femur when the knee is flexed and weight-bearing. Flexion movement in the sagittal plane decreases the joint angle, bending the joint, and is a crucial motion for the normal functionality of the knee, involving anterior bending of the vertebral column.