The cartilage defect is replaced by an osteochondral allograft (donor tissue containing bone and cartilage).
This procedure is performed via an open incision overlying the site of cartilage damage. The cartilage defect size is precisely measured, and the defect site is prepared for transplant. A fresh allograft (donor) is prepared on the operating room back table to match the size of the defect.
The allograft is then press-fit into the defect site with or without additional hardware to assist stabilization. The incision site is then closed and dressed in sterile dressing. Recovery is closely guided, and physical therapy begins in the days following surgery. Physical therapy begins immediately to assist with edema control, to reduce quadriceps atrophy and promote range of motion.