What is osteochondral allograft transplantation (OCA)?
Dr. Williams performed the first fresh osteochondral allograft transplant in New York State in 1998. Osteochondral allograft transplantation is a surgical procedure that uses healthy tissue from a cadaver donor to repair a cartilage injury or defect. Most osteochondral allograft procedures are performed in the knee. Damaged knee articular cartilage results in exposed bone in the knee joint. Loading of this exposed bone causes knee joint pain, friction and inflammation. During an osteochondral allograft transplantation procedure, a donor cartilage graft is shaped to fit the area of cartilage deficit. The allograft is then transplanted into the cartilage defect and replaces the damaged section. The transplanted graft immediately fills in the missing cartilage and help provide the patient with pain relief and improved knee function. Dr. Riley J. Williams, orthopedic knee surgeon, serving Manhattan, Brooklyn, New York City, NY and surrounding areas, has extensive experience in performing osteochondral allograft transplantation.