Osteochondral grafting is a surgical procedure used to repair damaged cartilage and underlying bone in joints, often the knee. This technique involves taking a small piece of healthy bone and cartilage from a donor site, usually from a non-weight-bearing area of the joint, and transplanting it to the damaged area. The graft helps restore the joint's surface, promoting healing and reducing pain. This procedure is particularly beneficial for patients with localized cartilage defects, as it can improve joint function and delay the need for more invasive surgeries, such as joint replacement.