title: Outcomes of total hip replacement in limbs affected by poliomyelitis.
abstract: BACKGROUND
  The outcomes of total hip replacement in patients suffering from residual poliomyelitis are poorly covered in the literature. In this retrospective study we posed the question of whether total hip replacement performed for degenerative hip diseases in limbs with residual poliomyelitis could determine satisfactory mid-term clinical and radiographic results, with a reasonable complication rate.
  
  
  METHODS
  A retrospective study was carried out to assess the results of 14 total hip replacements performed on 14 patients with residual poliomyelitis on the involved limb from June 1999 to September 2011. Average age at the time of surgery was 51 years (range 26-66 years). Mean duration of follow-up was 92 months (range 52-156 months). Surgery was performed through a direct lateral approach on all hips. All but one were cementless implants.
  
  
  RESULTS
  2 implants failed, 1 due to traumatic acetabular fracture 6 days after surgery, and 1 due to aseptic cup loosening 13 years after surgery. Surgery was uneventful in all patients except 1 (7%), who experienced a transient sensory sciatic nerve palsy. At the latest follow up Harris Hip Score was 83.3 (range 72-91) with a marked improvement when compared to preoperative score (average 52, range 32-78). No dislocations had occurred.
  
  
  CONCLUSIONS
  Total hip replacement can be considered a feasible option for hip osteoarthritis in patients with limbs affected by residual poliomyelitis. Longer follow-up studies are needed to assess the effectiveness of unconstrained total hip replacement in polio patients.
authors.affiliation: General Orthopaedic Surgery, Rizzoli Sicilia Department, Rizzoli Orthopaedic Institute Bagheria, Palermo - Italy.
authors.forename: Cesare
authors.initials: C
authors.lastname: Faldini
authors.affiliation: General Orthopaedic Surgery, Rizzoli Sicilia Department, Rizzoli Orthopaedic Institute Bagheria, Palermo - Italy.
authors.forename: Marcello
authors.initials: M
authors.lastname: De Fine
authors.affiliation: Centre of Integrated Research (CIR), Department of Orthopaedics and Trauma Surgery, University Campus Bio-Medico of Rome, Rome - Italy.
authors.forename: Alberto
authors.initials: A
authors.lastname: Di Martino
authors.affiliation: General Orthopaedic Surgery, Rizzoli Sicilia Department, Rizzoli Orthopaedic Institute Bagheria, Palermo - Italy.
authors.forename: Daniele
authors.initials: D
authors.lastname: Fabbri
authors.affiliation: General Orthopaedic Surgery, Rizzoli Sicilia Department, Rizzoli Orthopaedic Institute Bagheria, Palermo - Italy.
authors.forename: Raffaele
authors.initials: R
authors.lastname: Borghi
authors.affiliation: General Orthopaedic Surgery, Rizzoli Sicilia Department, Rizzoli Orthopaedic Institute Bagheria, Palermo - Italy.
authors.forename: Mohammadreza
authors.initials: M
authors.lastname: Chehrassan
authors.affiliation: General Orthopaedic Surgery, Rizzoli Sicilia Department, Rizzoli Orthopaedic Institute Bagheria, Palermo - Italy.
authors.forename: Francesco
authors.initials: F
authors.lastname: Traina
mesh_terms: D000328:Adult; D000368:Aged; D019644:Arthroplasty, Replacement, Hip / Q000009:adverse effects / Q000379:methods*; D015331:Cohort Studies; D015897:Comorbidity; D005260:Female; D005500:Follow-Up Studies; D006622:Hip Prosthesis; D006801:Humans; D008297:Male; D008875:Middle Aged; D015207:Osteoarthritis, Hip / Q000000981:diagnostic imaging / Q000453:epidemiology* / Q000601:surgery; D061214:Patient Safety; D011183:Postoperative Complications / Q000453:epidemiology / Q000503:physiopathology; D016262:Postpoliomyelitis Syndrome / Q000175:diagnosis / Q000453:epidemiology* / Q000601:surgery; D011475:Prosthesis Failure; D012086:Reoperation / Q000706:statistics & numerical data; D012189:Retrospective Studies; D018570:Risk Assessment; D016896:Treatment Outcome