OSTEOCHONDRAL AUTOGRAFT TRANSFER SYSTEM is a procedure wherein the surgeon removes / cores a piece of healthy cartilage from non weight bearing area of knee and transfers it to the damaged weight bearing area of the knee.
Usually recommended in young patient <50 years of age with small area of cartilage damage due to trauma, OCD of knee.
Surgeon first inspects your knee with arthroscope for injury and cartilage defect and area from where graft is to be taken.
A small skin incision is made in your knee and then the surgeon cores a piece of osteochondral bone plug of about 10mm in diameter with a special coring instrument. The recipient site is prepared for graft uptake and then surgeon transfer the graft to the damaged area of knee. Over the time graft heals with surrounding cartilage and bone and resolves the pain.