X linked hipophosphatemic rickets especially effects lower extremity. It mostly causes insufficiency fractures and difficulty in mobility. Treatment depends on seriosity of the deformity and age of the patients. The main purpose of the treatment is to correct both mechanical and anatomical axis and prevent the recurrence. Hemiepiphysiodesis is the treatment choice fort he young patients. For the adults multiple osteotomy and intramedullary fixation from proximal metaphysis to distal metaphysis is suggested. Combination of the external fixator for the correction ability of the deformity with internal fixation can provide more comfortable mobilization during the life.