Fig. 2From: Lateral Unicompartmental knee arthroplasty for a secondary osteonecrosis of the lateral femoral condyle. A case reportIntraoperative findings: (a) A large overlying cartilage over the osteonecrosis lesions. Calculation of lesion size: (b, c) The length and width of the lesion were measured in vitro(d) After drilling holes on the necrotic bone bed.Back to article page