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Hip Int. 2012 Nov-Dec;22(6):628-32. doi: 10.5301/HIP.2012.10351.

Long-term results of intertrochanteric varus osteotomy for the dysplastic hip.

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Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan.


Total hip arthroplasty (THA) is a well established treatment for arthrosis of the hip, however many problems remain which have not yet been resolved, including component loosening and infection. Therefore, surgeons hesitate to perform THA in younger patients showing early signs of the disease. Intertrochanteric varus osteotomy was developed for osteoarthrosis with coxa valga. This procedure has been commonly used in patients with dysplastic hips. However, femoral head coverage is not sufficiently improved by this procedure. In order to overcome the disadvantages of this procedure, since 1972 we performed intertrochanteric varus osteotomy simultaneously combined with acetabuloplasty for the treatment of osteoarthrosis secondary to dysplasia. Between 1969 and 1994, we performed 104 intertrochanteric varus osteotomies for prearthrosis and early stage arthrosis of the hip due to acetabular dysplasia in 84 patients. In this study, we reviewed these patients clinically and radiographically, over 15 years. The intertrochanteric varus osteotomy alone was employed in 38 hips (varus group). Combined intertrochanteric varus osteotomy and acetabuloplasty was employed in 63 hips (combined group). The average Harris hip score at the latest follow-up in the combined group significantly higher than that in the 'varus' group. Postoperative centre-edge angle and age at operation were correlated with the Harris hip score at the most recent follow-up. The results of the present study indicate that this combined intertrochanteric varus osteotomy and acetabuloplasty for dysplastic hip should be considered in young patients when the disease is at an early stage.

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