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  • Title: Arthrodiastasis of the hip.
    Author: Hosny GA, El-Deeb K, Fadel M, Laklouk M.
    Journal: J Pediatr Orthop; 2011 Sep; 31(2 Suppl):S229-34. PubMed ID: 21857444.
    Abstract:
    BACKGROUND: Hip distraction in Legg-Calvé-Perthes disease unloads the joint, which negates the harmful effect of the stresses on the articular surface, which may promote the sound healing of the areas of necrosis. METHODS: Nonarticulated arthrodiastasis without soft tissue release using an Ilizarov external fixator was applied to 29 patients with Legg-Calvé-Perthes disease (older than 8 y at onset and lateral pillar type C or B). RESULTS: Follow-up period ranged from 2.5 to 11 years with an average of 7.5 years. Twenty-seven cases (93%) had improvement of the range of motion postoperatively. Preoperatively, all patients had constant pain, whereas at last follow-up 26 (86%) patients had no pain and 3 had an improvement. Stulberg classification was applied to 21 cases who reached skeletal maturity at last follow-up: 9 cases were type II, 7 cases were type III, 4 cases were type IV, and 1 case was type V. CONCLUSIONS: Nonarticulated hip distraction without soft tissue release seems to be a valid treatment option in cases with Legg-Calvé-Perthes disease where poor results are expected from conventional treatment.
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