Total meniscectomy and subtotal meniscectomy can obviously improve the symptoms of patients with meniscus injury in a short time, but 80% patients will have osteoarthritis, and the movement of lower limbs can be limited by 50%, and some patients will eventually be unable to participate in sports activities. In recent years, due to the full research on the functions of meniscus, such as maintaining joint stability, conducting load and dispersing stress, and various research experiments, it is shown that regenerated meniscus does not have the protective effect of normal meniscus, and regenerated meniscus cannot prevent the occurrence of knee osteoarthritis. At present, the popular view in the world is that partial resection is not allowed, and subtotal resection is not allowed. Basic research proves that partial meniscectomy has better biomechanical advantages. The highest pressure applied to the tibial plateau is directly proportional to the number of meniscectomy. As long as the edge is intact, the residual meniscus structure can still transfer the load. Partial resection is the most widely used arthroscopic surgery after the appearance of arthroscopy, because it has fewer removed parts, less influence on the knee joint, less tissue damage and faster recovery. It is suitable for longitudinal fissure, oblique fissure, transverse fissure and valvular fissure with limited meniscus tear and stable tissue structure around the meniscus, as well as lamellar fissure and basket fissure near the free edge in a small range. The complications after APM were significantly less than those after total meniscectomy, and the most common complication was synovial fluid exudation after APM. If exudation lasts for 2 ~ 3 months, arthroscopic surgery is needed again to remove possible re-tearing or residual debris. Because this operation only removes the damaged part of the meniscus, the stress on the meniscus will be uneven after operation, and eventually a new fracture will be formed in the weak area of the meniscus, which will make the symptoms reappear. One of the influencing factors is the condition of articular cartilage seen during operation, especially in patients over 40 years old, but age is not the only influencing factor. It seems that men have better postoperative effect than women. In addition, APM can not avoid ACL dysfunction, nor can it prevent the process of joint degeneration. Although it is not as serious as joint degeneration caused by total meniscectomy, it does occur, especially in the long term. But as far as its long-term effect is concerned, partial resection is a feasible surgical method at present.

The operation I have had is ok now for a year, but strenuous exercise is still not good. The muscles have not fully recovered. The main function of ligament is stabilization. I hope you will recover soon after scientific exercise!