Small implant on the condyle of the femur.
Trochlear implant for arthritic damage to the groove of the femur (trochlear groove).
How does a focal cartilage implant work?
A focal implant may prevent further damage in a way analogous to a dental filling, providing an alternative to a joint replacement. Patients with such a problem are often relatively young with otherwise healthy joint cartilage.
NICE guidelines
The National Institute for Health and Care Excellence (NICE) has issued guidelines for these procedures.