title: Sex-related outcome differences after implantation of low-contact-stress mobile-bearing total knee arthroplasty.
abstract: OBJECTIVE
  The aim of the study was to investigate outcome differences between female and male patients after implantation of low-contact-stress (LCS) mobile-bearing total knee prostheses at a minimum follow-up of five years with respect to clinical and radiological parameters.
  
  
  METHODS
  We retrospectively analysed 128 prostheses in 126 patients (90 women and 34 men) using our hospital database. Data was extracted with respect to range of motion (ROM), the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) score, the Knee Society Score (KSS) and radiolucent lines on conventional X-rays.
  
  
  RESULTS
  At follow-up, we observed no significant differences between female and male patients after LCS total knee prostheses. Benefit after implantation of LCS total knee prostheses after five years of minimum follow-up was not significantly different between female and male patients in terms of clinical outcome or radiolucent lines.
  
  
  CONCLUSIONS
  We found no factors in favour of gender-specific total knee prostheses.
authors.affiliation: Department of Orthopaedic Surgery, Medical University of Graz, Auenbruggerplatz 5, 8036, Graz, Austria.
authors.forename: Norbert
authors.initials: N
authors.lastname: Kastner
authors.forename: Gerald
authors.initials: G
authors.lastname: Gruber
authors.forename: Birgit A
authors.initials: BA
authors.lastname: Aigner
authors.forename: Jörg
authors.initials: J
authors.lastname: Friesenbichler
authors.forename: Michael
authors.initials: M
authors.lastname: Pechmann
authors.forename: Florentine
authors.initials: F
authors.lastname: Fürst
authors.forename: Patrick
authors.initials: P
authors.lastname: Vavken
authors.forename: Andreas
authors.initials: A
authors.lastname: Leithner
authors.forename: Patrick
authors.initials: P
authors.lastname: Sadoghi
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D019645:Arthroplasty, Replacement, Knee / Q000295:instrumentation* / Q000379:methods / Q000534:rehabilitation; D016208:Databases, Factual; D005260:Female; D006801:Humans; D007719:Knee Joint / Q000503:physiopathology / Q000601:surgery; D007720:Knee Prosthesis; D008297:Male; D008875:Middle Aged; D020370:Osteoarthritis, Knee / Q000601:surgery; D017063:Outcome Assessment, Health Care; D010146:Pain; D011474:Prosthesis Design; D011475:Prosthesis Failure; D011788:Quality of Life; D016059:Range of Motion, Articular; D020127:Recovery of Function; D012189:Retrospective Studies; D012720:Severity of Illness Index; D012737:Sex Factors; D016896:Treatment Outcome