To evaluate the influence of arthrodiatasis in the natural history of the stages of the disease radiologically and also the timing of arthrodiatasis. 44 patients with Perthes' disease that had articulated hip distraction were radiologically evaluated. We assessed these based on Joseph's modified Elizabethtown classification before, during and soon after distraction. Other parameters used were the application of common radiological grading systems and other features.Aim
Materials and methods