title: Mid- and long-term results of femoral component revision using the cement-in-cement technique: Average 10.8-year follow-up study.
abstract: BACKGROUND
  Few reports are available on the long-term outcomes of femoral component revision by using the cement-in-cement technique. We report the mid- and long-term results of femoral component revision in total hip arthroplasty using the cement-in-cement technique.
  
  
  METHODS
  Between April 1996 and June 2009, 62 consecutive total hip arthroplasties with femoral component revision were performed in 57 patients by using the cement-in-cement technique. We retrospectively reviewed the cases with a follow-up period of at least five years. Three patients died, and two were lost to follow-up. Thus, 52 patients (57 hips), comprising 51 women and one man, were followed for average 10.8 years.
  
  
  RESULTS
  The mean Japanese Orthopaedic Association hip score improved from 57.6 points (range, 28-95 points) preoperatively to 79.8 points (range, 52-98 points) at one year postoperatively and to 77.4 points (range, 59-96 points) at the final follow up. Three revisions of the femoral component were necessary. One of the causes for the revision was a periprosthetic infection that occurred 20 months postoperatively. Another was aseptic loosening that occurred 99 months postoperatively and required revision of the acetabular component. The well-fixed femoral component was revised using the cement-in-cement technique at time of the acetabular revision. The third case was aseptic loosening of the femoral component that occurred 84 months postoperatively. The five-, 10-, and 15-year survival rates for the femoral re-revision due to any reason were 98.4%, 94.0%, and 94.0%, respectively.
  
  
  CONCLUSIONS
  Use of the cement-in-cement technique for revision total hip arthroplasty resulted in good mid- and long-term radiological and clinical outcomes.
authors.affiliation: Kyoto University, Graduate School of Medicine, Department of Orthopaedic Surgery, 54 Shogoin-Kawaharacho, Sakyo-ku, Kyoto 606-8507, Japan.
authors.forename: Yaichiro
authors.initials: Y
authors.lastname: Okuzu
authors.affiliation: Kyoto University, Graduate School of Medicine, Department of Orthopaedic Surgery, 54 Shogoin-Kawaharacho, Sakyo-ku, Kyoto 606-8507, Japan. Electronic address: k.g.bau@kuhp.kyoto-u.ac.jp.
authors.forename: Koji
authors.initials: K
authors.lastname: Goto
authors.affiliation: Kyoto University, Graduate School of Medicine, Department of Orthopaedic Surgery, 54 Shogoin-Kawaharacho, Sakyo-ku, Kyoto 606-8507, Japan.
authors.forename: Kazutaka
authors.initials: K
authors.lastname: So
authors.affiliation: Kyoto University, Graduate School of Medicine, Department of Orthopaedic Surgery, 54 Shogoin-Kawaharacho, Sakyo-ku, Kyoto 606-8507, Japan.
authors.forename: Yutaka
authors.initials: Y
authors.lastname: Kuroda
authors.affiliation: Kyoto University, Graduate School of Medicine, Department of Orthopaedic Surgery, 54 Shogoin-Kawaharacho, Sakyo-ku, Kyoto 606-8507, Japan.
authors.forename: Shuichi
authors.initials: S
authors.lastname: Matsuda
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D019644:Arthroplasty, Replacement, Hip / Q000009:adverse effects* / Q000379:methods; D001843:Bone Cements; D002484:Cementation / Q000379:methods; D015331:Cohort Studies; D005260:Female; D005269:Femur / Q000601:surgery*; D005500:Follow-Up Studies; D006622:Hip Prosthesis; D006801:Humans; D053208:Kaplan-Meier Estimate; D008297:Male; D008875:Middle Aged; D011474:Prosthesis Design / Q000379:methods; D011475:Prosthesis Failure; D016059:Range of Motion, Articular / Q000502:physiology*; D012086:Reoperation / Q000379:methods*; D012189:Retrospective Studies; D018570:Risk Assessment; D013997:Time Factors; D016896:Treatment Outcome
chemical_list: D001843:Bone Cements