A polyurethane meniscal implant can improve knee joint function and
significantly reduce pain in patients with segmental meniscus deficiency up to 5
years after implantation. A stable cartilage status of the index compartment at
5-year follow-up was demonstrated in 46.7% of patients, calling into question the
chondroprotective ability of the implant. In addition, a relatively high failure
rate was noticed. Long-term and randomized controlled studies are mandatory to
confirm the initial results and the reliability of this procedure.