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(A, B) Arthroscopic views of the osteochondral defect in the superior dome of the femoral head. The anterior portal was used for instrumentation and the anterolateral portal was used for viewing. After excision of the chondral defect, the tip of the K wire, which is passed from the lateral border of the femur below the trochanter major, is visualized with an arthroscope (C). Drilling is performed over the K wire with a 10 mm diameter drill (D). The osteochondral plug is transferred to the femoral head in a retrograde fashion (E) and positioned in the spherical surface of the femoral head cartilage (F). (FH: Femoral head, A: Acetabulum, OP: Osteochondral plug).
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