title: Total hip arthroplasty using S-ROM prosthesis for dysplastic hip.
abstract: OBJECTIVE
  The purpose of this study was to evaluate the clinical and radiological results of total hip arthroplasty using a proximal modular femoral stem in patients who had secondary coxarthrosis associated with a dysplastic hip.
  
  
  METHODS
  Forty-two patients (45 hips) with secondary coxarthrosis were evaluated after undergoing primary total hip arthroplasty using an S-ROM proximal modular femoral stem. The average follow-up was 80 months (range: 60 to 96 months). Clinical and radiological assessments were performed based on the Harris hip score and the radiological changes around the prosthesis.
  
  
  RESULTS
  The average Harris hip score improved from 52.2 points to 88.5 points. All femoral stems showed stable fixation; there were 37 cases by bony ingrowth and 8 cases by stable fibrous ingrowth. Neither osteolysis nor progressive radiolucent lines around the femoral stem were found at the last follow-up. Forty-one hips (91.9%) revealed excellent or good clinical results at the most recent follow-up.
  
  
  CONCLUSIONS
  For advanced secondary coxarthrosis, total hip arthroplasty with the use of the proximal modular femoral stem yielded good mid-term results with respect to the clinical and radiological criteria.
authors.affiliation: Department of Orthopaedic Surgery, Inha University College of Medicine, 7-206 Sinheung-dong 3-ga, Jung-gu, Incheon 400-711, Korea. kangjoon@inha.ac.kr
authors.forename: Joon Soon
authors.initials: JS
authors.lastname: Kang
authors.forename: Kyoung Ho
authors.initials: KH
authors.lastname: Moon
authors.forename: Ryuh Sup
authors.initials: RS
authors.lastname: Kim
authors.forename: Seung Rim
authors.initials: SR
authors.lastname: Park
authors.forename: Jung Sun
authors.initials: JS
authors.lastname: Lee
authors.forename: Sang Hyun
authors.initials: SH
authors.lastname: Shin
mesh_terms: D000328:Adult; D000368:Aged; D019644:Arthroplasty, Replacement, Hip / Q000009:adverse effects / Q000379:methods*; D005260:Female; D005269:Femur / Q000473:pathology*; D006618:Hip Dislocation, Congenital / Q000150:complications / Q000473:pathology / Q000601:surgery*; D006622:Hip Prosthesis; D006801:Humans; D016916:Joint Deformities, Acquired / Q000150:complications / Q000473:pathology / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D015207:Osteoarthritis, Hip / Q000209:etiology / Q000601:surgery; D011183:Postoperative Complications / Q000473:pathology