Wiig O, Terjesen T, Svenningsen S
This nationwide prospective study was designed to determine prognostic factors and evaluate the outcome of different treatments of Perthes' disease. It recommends proximal femoral varus osteotomy in children aged six years and over at the time of diagnosis with hips having more than 50% femoral head necrosis and suggests that the abduction orthosis should be abandoned in Perthes' disease.
Journal of Bone and Joint Surgery, 2008, 90(10), 1364-71