A meniscus transplant is a surgical procedure to replace a damaged or missing meniscus. The meniscus is a C-shaped piece of cartilage that cushions and protects the knee joint. Recovery time is usually about a month. But you may need to take a break from some sports and activities for up to a year to give your knee time to heal completely.

Your surgeon may recommend this procedure if your meniscus is severely damaged or if you had your meniscus removed (meniscectomy) after a previous injury. Sometimes surgeons remove a meniscus if the damage is so severe that they can’t repair it. Living without a meniscus can increase your risk of osteoarthritis and chronic (long-term) knee pain.

A torn or injured meniscus can also lead to osteoarthritis. This condition happens when other cartilage in the knee wears away, causing pain and stiffness. A meniscal transplant can prevent or delay osteoarthritis from developing. But this procedure will not help people who already have knee pain from arthritis.