The signs of successful meniscal suture can be judged from the following aspects: 1. The original symptoms disappear: i.e., much pain, swelling, and interlocking by activity. 2, the original signs disappeared: the original meniscus rocking test, McDonald’s sign, KS sign, joint gap convexity, joint gap pressure pain, etc. all disappeared or mostly disappeared. 3. After the suture is rebuilt, an MRI is performed to see whether the suture is neatly aligned or not, and how strong and neat the signal is.