title: Long-term functional and radiological outcomes of allograft hip prosthesis composite. A fourteen -year follow-up study.
abstract: Allograft hip composite prosthesis (APC) is a type of reconstruction after resection of the proximal femur. This study aimed to assess long-term outcomes after an APC reconstruction.
  
  
  
  Forty-six patients were retrospectively included (14 revision total hip replacements, 30 primary malignant bone tumors, two metastasis).
  
  
  
  The mean length of femoral bone resection was 16.4 cm (7 to 27). With a mean follow-up of 14.7 years (6.3 to 32.6), Postel-Merle d'Aubigné score was 15.7 (8 to 21), Musculoskeletal Tumor Society score at 23.1 or 77% (15 to 29), and abductor strength at 3.4 (2 to 5). Allograft resorption was minor for 20 patients (44.4%), moderate for 13 patients (28.9%), and severe for 12 patients (26.7%). Host-allograft shaft bone fusion was achieved in 37 cases (84.1%). Trochanteric fracture occurred in 26 cases (59.1%). Length of femoral resection, allograft bone resorption, and trochanteric fracture did not have an effect on functional outcomes. At ten years follow-up, overall revision-free and femoral stem survivals were 54.1 ± 0.8% and 81.4 ± 0.6% respectively. No parameter evaluated influenced the survivorship.
  
  
  
  APC is a reliable reconstruction adapted for huge proximal femoral bone resections. Trochanteric fracture and allograft bone resorption do not seem to influence functional results.
  
  
  
  Level IV.
authors.affiliation: Orthopaedic Department, Tumor and Spine Unit, Bicêtre University Hospital, AP-HP Paris, 78 rue du Général Leclerc, Le Kremlin-Bicêtre, France, F-94270. arnauddubory@hotmail.fr.|JE 2494 Univ Paris-Sud Orsay, F-01405, Orsay, France. arnauddubory@hotmail.fr.
authors.forename: Arnaud
authors.identifier: 0000-0001-7371-1645
authors.initials: A
authors.lastname: Dubory
authors.affiliation: Clinique Arago, 187 rue Raymond Losserand, Paris, France, 75014.
authors.forename: Eric
authors.initials: E
authors.lastname: Mascard
authors.affiliation: Orthopaedic Department, Cochin University Hospital, AP-HP Paris, 27 rue du Faubourg Saint-Jacques, Paris, France, 75014.
authors.forename: Méryl
authors.initials: M
authors.lastname: Dahan
authors.affiliation: Orthopaedic Department, Cochin University Hospital, AP-HP Paris, 27 rue du Faubourg Saint-Jacques, Paris, France, 75014.
authors.forename: Philippe
authors.initials: P
authors.lastname: Anract
authors.affiliation: Orthopaedic Department, Tumor and Spine Unit, Bicêtre University Hospital, AP-HP Paris, 78 rue du Général Leclerc, Le Kremlin-Bicêtre, France, F-94270.|JE 2494 Univ Paris-Sud Orsay, F-01405, Orsay, France.
authors.forename: Charles
authors.initials: C
authors.lastname: Court
authors.affiliation: Orthopaedic Department, University Hospital-Medical School Clermont-Ferrand, CHU Gabriel-Montpied, 58 rue Montalembert, Clermont-Ferrand, France, 63000.
authors.forename: Stéphane
authors.initials: S
authors.lastname: Boisgard
authors.affiliation: Orthopaedic Department, Tumor and Spine Unit, Bicêtre University Hospital, AP-HP Paris, 78 rue du Général Leclerc, Le Kremlin-Bicêtre, France, F-94270.|JE 2494 Univ Paris-Sud Orsay, F-01405, Orsay, France.
authors.forename: Brice
authors.initials: B
authors.lastname: Viard
authors.affiliation: Orthopaedic Department, Tumor and Spine Unit, Bicêtre University Hospital, AP-HP Paris, 78 rue du Général Leclerc, Le Kremlin-Bicêtre, France, F-94270.|JE 2494 Univ Paris-Sud Orsay, F-01405, Orsay, France.
authors.forename: Gilles
authors.initials: G
authors.lastname: Missenard
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D064591:Allografts; D019644:Arthroplasty, Replacement, Hip; D001859:Bone Neoplasms / Q000000981:diagnostic imaging / Q000601:surgery*; D016025:Bone Transplantation; D002648:Child; D005260:Female; D005269:Femur / Q000000981:diagnostic imaging / Q000601:surgery*; D005500:Follow-Up Studies; D006621:Hip Joint / Q000000981:diagnostic imaging / Q000601:surgery*; D006622:Hip Prosthesis; D006801:Humans; D007592:Joint Diseases / Q000000981:diagnostic imaging / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D011475:Prosthesis Failure; D019651:Plastic Surgery Procedures / Q000379:methods; D012086:Reoperation; D012189:Retrospective Studies; D014184:Transplantation, Homologous; D055815:Young Adult
keywords: Abductor strength; Allograft hip prosthesis; Allograft resorption; Primary malignant bone tumor; Trochanteric fracture