title: Long-term results of cementless femoral reconstruction following intertrochanteric osteotomy.
abstract: OBJECTIVE
  The objective of this retrospective cohort study was to assess the long-term outcome of cementless femoral reconstruction in patients with previous intertrochanteric osteotomy (ITO).
  
  
  METHODS
  We evaluated the clinical and radiographic results of a consecutive series of 45 patients (48 hips, mean age 50 years) who had undergone conversion hip replacement following ITO with a cementless, grit-blasted, double-tapered femoral component. Clinical outcome was determined using the Harris hip score. Stem survival for different end points was assessed using Kaplan-Meier survivorship analysis.
  
  
  RESULTS
  At a mean follow-up of 20 (range, 16-24) years, 11 patients (12 hips) had died, and no patient was lost to follow-up. Six patients (six hips) underwent femoral revision, two for infection, three for aseptic loosening and one for periprosthetic fracture. Mean Harris hip score at final follow-up was 78 points (range, 23-100 points). Stem survival for all revisions was 89% (95%CI, 75-95) at 20 years, and survival for aseptic loosening was 93% (95%CI, 80-98).
  
  
  CONCLUSIONS
  The long-term results with this type of cementless femoral component in patients with previous intertrochanteric osteotomy are encouraging and compare well to those achieved in patients with normal femoral anatomy.
authors.affiliation: Department of Orthopaedic and Trauma Surgery, University Hospital Heidelberg, Schlierbacher Landstrasse 200a, Heidelberg, 69118, Germany. christian.merle@med.uni-heidelberg.de
authors.forename: Christian
authors.initials: C
authors.lastname: Merle
authors.forename: Marcus R
authors.initials: MR
authors.lastname: Streit
authors.forename: Moritz
authors.initials: M
authors.lastname: Innmann
authors.forename: Tobias
authors.initials: T
authors.lastname: Gotterbarm
authors.forename: Peter R
authors.initials: PR
authors.lastname: Aldinger
mesh_terms: D000328:Adult; D000368:Aged; D019644:Arthroplasty, Replacement, Hip / Q000009:adverse effects / Q000379:methods* / Q000534:rehabilitation; D002484:Cementation; D005260:Female; D005269:Femur / Q000601:surgery*; D006304:Health Status; D006621:Hip Joint / Q000000981:diagnostic imaging / Q000503:physiopathology / Q000601:surgery; D006801:Humans; D053208:Kaplan-Meier Estimate; D008297:Male; D008875:Middle Aged; D010027:Osteotomy / Q000009:adverse effects / Q000379:methods*; D017063:Outcome Assessment, Health Care; D011183:Postoperative Complications / Q000209:etiology; D011859:Radiography; D016059:Range of Motion, Articular; D012086:Reoperation; D012189:Retrospective Studies