title: Fresh-stored osteochondral allografts for the treatment of femoral head defects: surgical technique and preliminary results.
abstract: OBJECTIVE
  The purpose of this study was to present the preliminary clinical and radiographic outcomes of the treatment of femoral head osteochondral defects in eight consecutive symptomatic patients with fresh-stored osteochondral allografts via a trochanteric osteotomy.
  
  
  METHODS
  This study included all consecutive patients treated in our department between 2008 and 2010 for worsening pain and mechanical symptoms of femoral head osteochondral defects. Each patient had preoperative routine hip radiographs and a preoperative magnetic resonance imaging study that determined and recorded the defect size and femoral head diameters. Allograft donors were identified through the Multiple Organ Retrieval and Exchange program (Ontario, Canada).
  
  
  RESULTS
  The osteochondral defects were secondary to osteochondritis dissecans in four patients, avascular necrosis in three and femoral head fracture without dislocation in one. The patients' average age at surgery was 23.7 (range 17-42), and the average follow-up was 41 months (range 24-54). Follow-up included clinical and radiographic examinations at standard intervals. The average Harris hip scores improved from 57.7 (range 50-65) points preoperatively to 83.9 (range 72-94) points at latest follow-up. Five patients had good-to-excellent clinical outcomes, and one had a fair outcome. One patient was converted to a total hip arthroplasty due to progression of arthritis. Another patient's graft subsided and he underwent a successful repeat transplantation. An additional patient required the removal of the screws transfixing her trochanter due to persistent irritation.
  
  
  CONCLUSIONS
  These findings indicate that fresh-stored osteochondral allograft transplantation using a trochanteric slide and surgical dislocation is a viable treatment option for femoral head defects in young patients.
authors.affiliation: Orthopaedic Department, Division of Arthroplasty, Rabin Medical Center, Beilinson Campus (Affiliated to Sackler Faculty of Medicine), Tel Aviv University, 39 Zabotinsky Street, Petach Tikva, Israel. yonasofi@gmail.com
authors.forename: Yona
authors.initials: Y
authors.lastname: Kosashvili
authors.forename: Guy
authors.initials: G
authors.lastname: Raz
authors.forename: David
authors.initials: D
authors.lastname: Backstein
authors.forename: Oren Ben
authors.initials: OB
authors.lastname: Lulu
authors.forename: Allan E
authors.initials: AE
authors.lastname: Gross
authors.forename: Oleg
authors.initials: O
authors.lastname: Safir
mesh_terms: D000293:Adolescent; D000328:Adult; D064591:Allografts; D001863:Bone Screws; D016025:Bone Transplantation / Q000379:methods*; D005260:Female; D005264:Femoral Fractures / Q000150:complications*; D005269:Femur / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery*; D005271:Femur Head Necrosis / Q000150:complications*; D005500:Follow-Up Studies; D006621:Hip Joint / Q000000981:diagnostic imaging / Q000473:pathology; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D010008:Osteochondritis Dissecans / Q000150:complications*; D010027:Osteotomy / Q000379:methods*; D011859:Radiography; D012189:Retrospective Studies; D016896:Treatment Outcome; D055815:Young Adult
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