Why would a meniscal transplant be performed?

Meniscal transplant is an operation designed to replace a torn, defunctioned or removed meniscus with a new meniscus from donor tissue. The aim of meniscal transplant surgery is to slow down the degenerative change within the knee, improve pain and function. Meniscal deficiency increases the contact pressures by 235-335% on the articular cartilage within the knee, predisposing the knee to early onset osteoarthritis. Unstable, or progressive meniscal tears in younger patients puts them at higher risk of degenerative knee disease. My preferred treatment method is to repair the existing meniscus, but sometimes, the meniscus is too worn so we must consider meniscal transplant.