Osteochondral Allograft Transplantation
Osteochondral allograft transplantation is performed when the cartilage defect is large enough for an allograft to be used. An allograft, a block of cartilage or bone obtained from a deceased donor, is used. The allograft is sterilized and prepared so as to fit exactly into the defect area. This procedure does require a larger, open incision.