title: Total hip arthroplasty requiring subtrochanteric osteotomy for developmental hip dysplasia: 5- to 14-year results.
abstract: This study evaluated total hip arthroplasty in patients with developmental hip dysplasia requiring femoral subtrochanteric shortening derotational osteotomy (SDO). Twenty-three total hip arthroplasties that required SDO were evaluated at an average follow-up of 8 years (range, 5-14 years). Clinical and radiographic data were retrospectively reviewed. Four hips (17%) failed requiring revision. Time to revision averaged 4 years (range, 1-8 years) with polyethylene wear and osteolysis etiologic in 3 of 4 failures. Survivorship was 75% at 14 years. Subtrochanteric SDO provided reliable correction of dysplastic femoral deformity, facilitated hip reduction at the anatomic center, and demonstrated predictable union in all cases. Wear-induced osteolysis was the major reason for revision, probably due to the relatively thin polyethylene liners required for the small acetabular components used in young, active patients.
authors.affiliation: Florida Orthopaedic Institute, Florida, USA.
authors.forename: Thomas L
authors.initials: TL
authors.lastname: Bernasek
authors.forename: George J
authors.initials: GJ
authors.lastname: Haidukewych
authors.forename: Kenneth A
authors.initials: KA
authors.lastname: Gustke
authors.forename: Owen
authors.initials: O
authors.lastname: Hill
authors.forename: Melissa
authors.initials: M
authors.lastname: Levering
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D019644:Arthroplasty, Replacement, Hip / Q000379:methods*; D005260:Female; D005500:Follow-Up Studies; D006618:Hip Dislocation, Congenital / Q000601:surgery*; D006801:Humans; D008297:Male; D008875:Middle Aged; D010014:Osteolysis / Q000601:surgery; D010027:Osteotomy / Q000379:methods; D011475:Prosthesis Failure