title: Press-fit cementless acetabular fixation with and without screws.
abstract: OBJECTIVE
  Cementless acetabular fixation for total hip arthroplasty (THA) is widely used. The question of using screws for a better primary and secondary acetabular fixation has been discussed in the literature in recent years. The aim of this meta-analysis was to compare fixation of acetabular cups with and without screws in total hip arthroplasty.
  
  
  METHODS
  Electronic databases Embase, PubMed and Cochrane Library were used to search for randomised controlled trials reported through May 2013 of cementless acetabular fixation for THA with and without screws. Two independent reviewers assessed the trials for eligibility and quality. All related data matching our standards were abstracted for meta-analysis by RevMan 5.0. Evaluation criteria included revisions, migration and osteolysis.
  
  
  RESULTS
  A total of 1,130 THAs enrolled into five trials were included in this meta-analysis. All studies compared fixation of acetabular cups with and without screws, and our pooled data showed no statistical significance between the two surgical methods in revision, migration and osteolysis.
  
  
  CONCLUSIONS
  There is no significant difference between cementless acetabular fixation for THA with and without screws in revisions, migration or osteolysis.
authors: Department of Orthopedic Surgery, First Affiliated Hospital, China Medical University, Shenyang, Liaoning, 110001, People's Republic of China.
authors: Sheng-Hui
authors: SH
authors: Ni
authors: Lei
authors: L
authors: Guo
authors: Tian-Long
authors: TL
authors: Jiang
authors: Jie
authors: J
authors: Zhao
authors: Yan-Gang
authors: YG
authors: Zhao
mesh_terms: D000077:Acetabulum / Q000601:surgery*; D019644:Arthroplasty, Replacement, Hip / Q000295:instrumentation* / Q000379:methods*; D001863:Bone Screws; D006622:Hip Prosthesis; D006801:Humans; D015994:Incidence; D016268:Internal Fixators; D010014:Osteolysis / Q000453:epidemiology; D011475:Prosthesis Failure; D012086:Reoperation / Q000706:statistics & numerical data; D016896:Treatment Outcome
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