Fig. 2From: Modified Smith–Petersen approach with rectus-sparing reduces severe avascular necrosis for developmental dysplasia of the hip at walking age: minimum 5-year follow-upPhotographs during right hip operation on a 15-month-old girl indicated the proximal rectus femoris was not released (the white solid arrow) in the modified Smith–Petersen approach and retracted by a sterile rope (the black solid arrow). The anterolateral femoral head (the white hollow arrow) was exposed after the hip joint capsule was opened through a T-shaped incisionBack to article page