title: Outcome after cementless total hip arthroplasty for arthritic hip in patients with residual poliomyelitis: a case series.
abstract: OBJECTIVE
  In this case series, we investigated the outcome of cementless total hip arthroplasty (THA) for advanced hip osteoarthritis in patients with residual poliomyelitis to evaluate its clinical usefulness for these patients.
  
  
  METHODS
  11 unilateral cementless primary THA were performed to arthritic hips in patients with residual poliomyelitis. 7 were in paralytic and 4 were in nonparalytic limbs. The mean follow-up duration was 79.9 months. Retrospective clinical evaluations with various scores and radiological evaluations were made.
  
  
  RESULTS
  Harris Hip Score, Western Ontario and McMaster Universities Arthritis Index (WOMAC) and Short-form (SF)-36 physical scales were significantly improved after the surgery. However, UCLA activity score and SF-36 mental scale were not. Because of remaining leg length discrepancies, all but 1 noted a residual limp. In nonparalytic hip, functional acetabular cup inclination during weight bearing significantly increased from installed inclination. Other than 1 case of posterior dislocation, no complications were observed.
  
  
  CONCLUSIONS
  Although the overall result itself is excellent, THA for these patients cannot improve limp, physical activity and mental status. Surgeons should be aware of the change of the inclination of acetabular cup during mobilisation, especially for THA in contralateral hip.
authors.affiliation: Department of Orthopaedic Surgery, Kyung Hee University Hospital, Seoul - Korea.
authors.forename: Yoon J
authors.initials: YJ
authors.lastname: Cho
authors.affiliation: Department of Orthopaedic Surgery, Kyung Hee University Hospital at Gangdong, Seoul - Korea.
authors.forename: Choong H
authors.initials: CH
authors.lastname: Lee
authors.affiliation: Department of Orthopaedic Surgery, Kyung Hee University Hospital at Gangdong, Seoul - Korea.
authors.forename: Young S
authors.initials: YS
authors.lastname: Chun
authors.affiliation: Department of Orthopaedic Surgery, Kyung Hee University Hospital at Gangdong, Seoul - Korea.
authors.forename: Kee H
authors.initials: KH
authors.lastname: Rhyu
mesh_terms: D000328:Adult; D001168:Arthritis / Q000601:surgery*; D019644:Arthroplasty, Replacement, Hip; D005260:Female; D005500:Follow-Up Studies; D006621:Hip Joint; D006622:Hip Prosthesis; D006801:Humans; D008297:Male; D008875:Middle Aged; D011051:Poliomyelitis / Q000150:complications*; D011859:Radiography; D012189:Retrospective Studies; D016896:Treatment Outcome