Fig. 1
From: Intertrochanteric curved varus osteotomy for subchondral fracture of the femoral head: a case series
a Osteotomy lines; trans-trochanteric anterior rotational osteotomy (ARO) (solid line) and inter-trochanteric curved varus osteotomy (CVO) (dotted line). b ARO. The greater trochanter is osteotomized, and the joint capsule is circumferentially incised. The femoral head is rotated anteriorly. c CVO. A curved osteotomy is performed from the proximal part of the greater trochanter to the lesser trochanter, and the femoral head is rotated into a varus position