年長児ペルテス病に対する内反骨切り術の治療成績

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  • Varus Osteotomy for Perthes' Disease in Patients Aged Nine and Older at Onset.

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Seven hips in 7 patients with Perthes' disease, all boys who were 9 and older at the age of onset of symptoms and were treated by subtrochanteric varus osteotomy, were reviewed clinically and radiographically after the age of bony maturity to examine the results of this procedure. The severity of the disease of the 7 hips comprised grade II: 5 hips and III: 2 hips according to Catterall's classification. However, the radiographic results at follow-up according to Stulberg's classification reported the following, class II: 2 hips, III: 2 hips and IV: 3 hips. Clinical results were good with a mean JOA hip score of 93 at follow-up, and a mean age of 21.4 years. However, there were 2 patients in their mid twenties who complained of hip pain at motion, both of whom had residual hip deformity of Stulberg class IV accompanied by a low Acetabular Head Index (AHI) and Acetabular Edge Angle (AEA) at the age of bony maturity.

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