The two menisci in each knee cushion the knee and preserve and protect the articular cartilage. When a meniscus tears, it causes pain. The menisci have a blood supply only on their peripheral border. Repairs are only successful when they are done in this area. Most tears occur in the interior of the meniscus and cannot be repaired.
If the meniscus has a tear in the periphery and is otherwise is good shape, a meniscal repair can be performed. The torn area is reattached to the rest of the meniscus with either sutures or an anchor. Dr Prodromos uses sutures and performs the surgery arthroscopically.
The video below shows an arthroscopically performed meniscal repair.