How to do knee meniscus posterior horn tear

Meniscus is an important buffer structure of human knee joint. We normally divide meniscus into anterior horn, body and hind foot artificially. According to the MRI findings, we divided meniscus injury into three degrees. The first degree injury showed normal triangular low signal intensity of meniscus, but this high signal intensity did not reach the edge of meniscus. If it showed short strip high signal intensity, and it did not reach the edge of meniscus, we called it second degree injury of meniscus. When there was obvious strip or irregular high signal intensity, And this kind of high signal reaches the edge of meniscus again, we call it the third degree injury of meniscus. When the meniscus has a serious tear, the torn fragments can curl and shift, and this shift can even overlap with the residual posterior horn of meniscus. Under normal circumstances, we adopt conservative treatment for the first degree injury, giving the limb brace fixation, and at the same time cooperating with the drug treatment of activating blood stasis and relieving pain; If the injury is more than two degrees, if it is accompanied by pain and limited movement of the knee joint, arthroscopy is mainly used for the treatment of meniscus injury at this stage. The tear of meniscus synovial margin can be considered for surgical suture under arthroscopy. If it cannot be sutured, partial meniscectomy can be performed. The healing of meniscus injury is closely related to the location of injury. Mild injury can be healed by conservative treatment. Moderate and severe injury should be treated as soon as possible.