“…Osteochondral defects may result from trauma, femoro‐acetabular impingement, osteochondritis dissecans, avascular necrosis, or sequalae of Legg–Calvé–Perthes disease [3, 11, 14, 17, 22, 30]. In young patients, different surgical strategies have been proposed to repair chondral lesions and restore articular surfaces, including microfracture, autologous chondrocyte implantation, and osteochondral autograft or allograft transplantation [10, 12, 14, 23, 24, 26, 30].…”