After complete removal of the quadriceps muscle, normal walking is generally not possible, and a small portion of the muscle may have little effect on normal walking. Quadriceps is one of the largest muscles in the human body, it consists of four heads of rectus femoris, extensor femoris, intermediate femoris and intramuscular femoris, the tendon is attached to the lower limb motor bones of the human body, and its function is to extend and flex the thigh, extend the calf, extend the knee joint, flex the hip joint, in order to maintain the human body’s normal upright posture, and to ensure the normal activities of the human body. If the quadriceps muscle is completely removed, the above functions will be completely lost, and the patient may experience symptoms such as claudication, and the leg becomes weak due to the lack of quadriceps muscle, or even unable to walk. The quadriceps muscle is very important for normal movement of the human body, and its removal will directly affect normal walking. If only a small portion is removed, it may have little effect on normal walking.