Fig. 4From: Are the outcomes of single-stage open reduction and Dega osteotomy the same when treating DDH in patients younger than 8 years old? A prospective cohort studyFemale child, 70 months, presented with bilateral DDH, Tönnis grade IV. A preoperative. B Immediate postoperative. C After 6 months of follow-up. D After 18 months of follow-up. Full union of the osteotomies and the radiographic result was Severin’s grade I on the right side and grade III on the left side. The left hip shows Kalamchi and MacEwen AVN grade IVBack to article page