Introducing a treatment for osteoarthritis of the knee: minimally invasive tibial high osteotomy Knee arthroplasty is an effective treatment for end-stage osteoarthritis and has been widely used in clinical practice with good clinical results. However, this treatment has potentially serious complications, such as infection, wear and tear loosening of the prosthesis, and postoperative pain. To say that knee arthroplasty is an effective treatment for end-stage osteoarthritis of the knee means that the knee lesion has reached a severe stage and this treatment has to be adopted. In fact, osteoarthritis of the knee treatment includes many methods. Early stage arthritis is mainly treated conservatively: insulation, avoiding cold in the joints, weight loss, avoiding heavy physical work and up and downhill movement patterns, choosing aerobic exercises without weight bearing such as swimming, cycling, etc., and also exercises such as quadriceps muscle strength by raising the leg in a flat position. In advanced osteoarthritis, if the cartilage of the medial joint is severely worn and the knee is inversion, we can use minimally invasive high tibial osteotomy, which is less invasive, faster recovery, and can avoid total knee replacement. The principle of tibial high osteotomy for osteoarthritis is that in patients with osteoarthritis of the knee with inversion, most of the body weight is transmitted to the ground through the medial side of the knee joint, so that the weight acts on the medial knee joint surface when standing and walking under weight, resulting in excessive wear and tear on the medial joint surface and thus severe pain in the medial joint space. In this case, we design a medial brace osteotomy or a lateral closed osteotomy to correct the medial knee, so that the line of gravity of the knee joint is shifted to the lateral knee joint, and then when walking with weight, the body weight acts on the healthy cartilage of the knee joint, and the patient will not have pain, and after a period of time, the cartilage of the medial side of the knee joint, which is no longer the main weight-bearing joint, will be repaired, and the patient’s symptoms will be completely improved. The incision is small, the patient recovers quickly, and he or she can usually be on the floor for partial weight-bearing exercises within two days after surgery. With this procedure, most patients with this type of osteoarthritis can expect to avoid knee replacement.