Repair of a large osteochondral defect in the knee joint using autologous and artificial bone graft combined with motion preserving distraction arthroplasty: a case report.

The biological reconstruction of a large osteochondral defect in the weight-bearing area of the knee joint has long been a challenge to orthopedic surgeons. We present a case of a large posttraumatic defect in the weight-bearing area of knee joint treated with a novel distraction arthroplasty device after reconstruction of the joint surface using combined autologous and artificial bone graft.