title: Perioperative mortality after hemiarthroplasty related to fixation method.
abstract: OBJECTIVE
  The appropriate fixation method for hemiarthroplasty of the hip as it relates to implant survivorship and patient mortality is a matter of ongoing debate. We examined the influence of fixation method on revision rate and mortality.
  
  
  METHODS
  We analyzed approximately 25,000 hemiarthroplasty cases from the AOA National Joint Replacement Registry. Deaths at 1 day, 1 week, 1 month, and 1 year were compared for all patients and among subgroups based on implant type.
  
  
  RESULTS
  Patients treated with cemented monoblock hemiarthroplasty had a 1.7-times higher day-1 mortality compared to uncemented monoblock components (p < 0.001). This finding was reversed by 1 week, 1 month, and 1 year after surgery (p < 0.001). Modular hemiarthroplasties did not reveal a difference in mortality between fixation methods at any time point.
  
  
  CONCLUSIONS
  This study shows lower (or similar) overall mortality with cemented hemiarthroplasty of the hip.
authors.affiliation: Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Australia.
authors.forename: Darren J
authors.initials: DJ
authors.lastname: Costain
authors.forename: Sarah L
authors.initials: SL
authors.lastname: Whitehouse
authors.forename: Nicole L
authors.initials: NL
authors.lastname: Pratt
authors.forename: Stephen E
authors.initials: SE
authors.lastname: Graves
authors.forename: Philip
authors.initials: P
authors.lastname: Ryan
authors.forename: Ross W
authors.initials: RW
authors.lastname: Crawford
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D019644:Arthroplasty, Replacement, Hip / Q000009:adverse effects / Q000379:methods* / Q000401:mortality; D001315:Australia / Q000453:epidemiology; D002484:Cementation; D005260:Female; D005593:Fracture Fixation, Internal / Q000009:adverse effects / Q000379:methods; D006620:Hip Fractures / Q000601:surgery; D006622:Hip Prosthesis / Q000009:adverse effects; D006801:Humans; D008297:Male; D011183:Postoperative Complications / Q000401:mortality; D011475:Prosthesis Failure; D012042:Registries; D012086:Reoperation