According to my 24-year experience in sports medicine in Hebei Institute of Physical Education. You can continue to exercise in the future, and your exercise level can reach the previous level. However, the torn posterior horn of the meniscus cannot be repaired, because the meniscus belongs to cartilage and has no nerves and blood vessels. If you continue to exercise vigorously in the future, it will only aggravate the degree of tearing. Finally, the posterior horn of the meniscus falls off, forming cartilage that is free in the joint cavity. At this time, strangulation will occur, that is, when walking, the inside of the knee joint suddenly gets stuck and the joint can't bend and stretch. After handling or unlocking his movable joints, he walked like a normal person at that time.
Personally, I think: you don't have to gamble with your body like a professional athlete. Be careful not to do sports activities with excessive exercise intensity after recovery. Prevent the meniscus from tearing constantly, and finally form the phenomenon of strangulation caused by cartilage dissociation.