Once free bodies and osteophytes are found in the knee joint, you need to seek medical help. If the articular cartilage is fine and the symptoms are not very severe, the free body and osteophytes can be simply treated. In this case, minimally invasive arthroscopic treatment can be used to remove the free body under the arthroscope, and the bone that affects the movement of the ligaments or causes joint interlocking or hyperplasia can be ground off with a grinding drill under the arthroscope. After cleaning, the life of the knee joint can be prolonged and the time to joint replacement can be delayed. Therefore, if you have a free body or osteophyte, you need to consult a sports medicine doctor who will give you a reasonable plan to remove the free body and grind away the visible osteophyte under arthroscopic minimally invasive conditions.