title: Causes for revision surgery in total hip replacement. A retrospective epidemiological analysis.
abstract: OBJECTIVE
  To determine the impact of each cause of revision surgery in total hip arthroplasty during the period 2009-2013. To analyse the relationship between these causes with different variables.
  
  
  METHODS
  A study was conducted on 127 patients who had hip replacement revision surgery in our hospital during this period. Parameters, such as age, sex, date of primary arthroplasty, prosthetic replacement date, and main cause of the revision were recorded. Those revisions performed within 5 years after the primary arthroplasty were considered as early rescue.
  
  
  RESULTS
  The most common cause of rescue was aseptic loosening in 38 (30%) followed by instability in 30 (24%). In terms of age at the time of rescue, statistically significant differences were found, with it being significantly higher in patients re-operated for a fracture. Differences in age at first surgery were found to be 7 years younger than those with late rescue (63.40) with respect to early (70.21).
  
  
  CONCLUSIONS
  Similar results to ours have been observed in other published series, except for the higher incidence of instability in early rescue.
  
  
  CONCLUSIONS
  This study demonstrates aseptic loosening and instability as the most frequent causes of revision surgery in our hospital. Age is a very influential factor in relation to longevity of primary arthroplasty. Complications were higher in when the primary hip replacement is implanted in older patients.
authors.affiliation: Servicio de Cirugía Ortopédica y Traumatología, Hospital Universitario Lucus Augusti, Lugo, España. Electronic address: diegocapon@hotmail.es.
authors.forename: D
authors.initials: D
authors.lastname: Capón-García
authors.affiliation: Servicio de Cirugía Ortopédica y Traumatología, Hospital Universitario Lucus Augusti, Lugo, España.
authors.forename: A
authors.initials: A
authors.lastname: López-Pardo
authors.affiliation: Grupo NECOM-Neurocomunicación y Marketing, Universidade de Vigo, Vigo, España.
authors.forename: M T
authors.initials: MT
authors.lastname: Alves-Pérez
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D019644:Arthroplasty, Replacement, Hip; D005260:Female; D005500:Follow-Up Studies; D006622:Hip Prosthesis / Q000009:adverse effects*; D006801:Humans; D015994:Incidence; D008297:Male; D008875:Middle Aged; D017063:Outcome Assessment, Health Care; D011475:Prosthesis Failure; D016459:Prosthesis-Related Infections / Q000453:epidemiology / Q000601:surgery*; D012086:Reoperation / Q000706:statistics & numerical data*; D012189:Retrospective Studies
keywords: Aflojamiento aséptico; Aseptic loosening; Fractura periprotésica; Inestabilidad; Infección protésica; Instability; Peri-prosthetic fracture; Prosthetic infection; Revision hip arthroplasty; Revisión de artroplastia de cadera