Radiologic Study of the Capital Femoral Epiphysis in Congenital Dislocation of the Hip.
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概要
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165 hips in 132 patients with congenital dislocation of the hip wete reviewed to analyse the radiological course of the capital femoral epihysis assosiated with metaphyseal changes. The mean age at late follow-up was 6.8 years (range, 5-15 years).Epiphyseal deformities wete classified into three types according to the extent of the defect, and metaphyseal changes, which were area of rarefaction, medial beaking and sagging rope sign, were sought in the early period after reduction.Then the late radiologic appearance of the femorel head and neck was graded to the three classes by modified thomas's system.89 hips wete recognized one of three types of the epiphyseal deformities. 32 hips of 89, in whcih epiphyseal deformities appeared, had one or more metaphyseal changes and were gradaed as poor and fair on the late radiologic apparance. All of 16 hips with poor results had early metaphyseal changes.It is thought that early metaphyseal changes on the epiphyseal deformities may be correlated with the final radiolgic result.
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