It can be effective for repairing isolated cartilage damage in the knee, but it’s not useful for people whose knee cartilage is diffusely damaged due to arthritis. During the maci implant procedure, your surgeon will prepare your knee by removing the damaged cartilage Matrix autologous chondrocyte implantation (maci) is a surgical procedure for the treatment of painful full thickness cartilage defects in the knee
Maci Currin Wiki