High survival of dome pelvic osteotomy in patients with early osteoarthritis from hip dysplasia.

Clinical Orthopaedics and Related Research
Takashi SakaiNobuhiko Sugano

Abstract

The Chiari osteotomy reportedly has a 60% to 91% survival rate at a minimum 20 years followup. The dome pelvic osteotomy (DPO) has the advantage of allowing a larger weightbearing surface, and congruity in the sagittal plane presumably would reduce the joint contact stress and perhaps increase longevity. We determined: (1) the survival after DPO at a minimum 25-year followup, (2) patient function, (3) acetabular coverage, and (4) factors influencing conversion to THA. We retrospectively reviewed 50 patients (59 hips) with developmental dysplasia of the hip (DDH) treated with DPO. The preoperative radiographic stages were graded as prearthritis (18 hips), early osteoarthritis (25 hips), and advanced osteoarthritis (16 hips). We performed a Kaplan-Meier survival analysis with THA conversion as the end point. We determined various radiographic parameters reflecting coverage, and compared demographic information for hips without and with THA conversion using multivariate logistic regression analysis. The minimum followup was 25 years (mean, 27.5 years; range, 25-32 years). Survival for all hips was 63.6% (95% CI, 51-76) at 27.5 years and that for hips with prearthritis and early osteoarthritis before the surgery was 79.1% (95% CI, ...Continue Reading

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Citations

Mar 31, 2018·Acta orthopaedica et traumatologica turcica·Asep SantosoTaek-Rim Yoon
Aug 7, 2014·Hip International : the Journal of Clinical and Experimental Research on Hip Pathology and Therapy·Takafumi AmanoToshiki Iwase

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