title: Implant survival of the most common cemented total hip devices from the Nordic Arthroplasty Register Association database.
abstract: Background and purpose - According to previous Nordic Arthroplasty Register Association (NARA) data, the 10-year implant survival of cemented total hip arthroplasties (THAs) is 94% in patients aged 65-74 and 96% in patients aged 75 or more. Here we report a brand-level comparison of cemented THA based on the NARA database, which has not been done previously. Patients and methods - We determined the rate of implant survival of the 9 most common cemented THAs in the NARA database. We used Kaplan-Meier analysis with 95% CI to study implant survival at 10 and 15 years, and Cox multiple regression to assess survival and hazard ratios (HRs), with revision for any reason as endpoint and with adjustment for age, sex, diagnosis, and femoral head material. Results - Spectron EF THA (89.9% (CI: 89.3-90.5)) and Elite THA (89.8% (CI: 89.0-90.6)) had the lowest 10-year survivorship. Lubinus (95.7% survival, CI: 95.5-95.9), MS 30 (96.6%, CI: 95.8-97.4), and C-stem THA (95.8%, CI: 94.8-96.8) had a 10-year survivorship of at least 95%. Lubinus (revision risk (RR) = 0.77, CI: 0.73-0.81), Müller (RR =0.83, CI: 0.70-0.99), MS-30 (RR =0.73, CI: 0.63-0.86), C-stem (RR =0.70, CI: 0.55-0.90), and Exeter Duration THA (RR =0.84, CI: 0.77-0.90) had a lower risk of revision than Charnley THA, the reference implant. Interpretation - The Spectron EF THA and the Elite THA had a lower implant survival than the Charnley, Exeter, and Lubinus THAs. Implant survival of the Müller, MS 30, CPT, and C-stem THAs was above the acceptable limit for 10-year survival.
authors.affiliation: a Department of Orthopaedics and Traumatology , Turku University Hospital , Turku.
authors.forename: Mika
authors.initials: M
authors.lastname: Junnila
authors.affiliation: a Department of Orthopaedics and Traumatology , Turku University Hospital , Turku.
authors.forename: Inari
authors.initials: I
authors.lastname: Laaksonen
authors.affiliation: b Coxa Hospital for Joint Replacement , Tampere.|c The Finnish Arthroplasty Register.
authors.forename: Antti
authors.initials: A
authors.lastname: Eskelinen
authors.affiliation: d Department of Public Health , Helsinki University , Helsinki , Finland.
authors.forename: Pekka
authors.initials: P
authors.lastname: Pulkkinen
authors.affiliation: e The Norwegian Arthroplasty Register, Department of Orthopaedic Surgery , Haukeland University Hospital , Bergen.|f Department of Clinical Medicine , University of Bergen , Bergen , Norway.
authors.forename: Leif
authors.initials: L
authors.lastname: Ivar Havelin
authors.affiliation: e The Norwegian Arthroplasty Register, Department of Orthopaedic Surgery , Haukeland University Hospital , Bergen.|f Department of Clinical Medicine , University of Bergen , Bergen , Norway.
authors.forename: Ove
authors.initials: O
authors.lastname: Furnes
authors.affiliation: e The Norwegian Arthroplasty Register, Department of Orthopaedic Surgery , Haukeland University Hospital , Bergen.
authors.forename: Anne
authors.initials: A
authors.lastname: Marie Fenstad
authors.affiliation: g Competence Centre for Clinical Epidemiology and Biostatistics, North, Department of Clinical Epidemiology , Aarhus University Hospital , Aarhus.|i The Danish Hip Arthroplasty Register, Department of Clinical Epidemiology , Aarhus University Hospital , Aarhus , Denmark.
authors.forename: Alma B
authors.initials: AB
authors.lastname: Pedersen
authors.affiliation: h Department of Orthopaedic Surgery and Traumatology , Odense University Hospital, Odense, and Institute of Clinical Research, University of Southern Denmark , Odense.|i The Danish Hip Arthroplasty Register, Department of Clinical Epidemiology , Aarhus University Hospital , Aarhus , Denmark.
authors.forename: Søren
authors.initials: S
authors.lastname: Overgaard
authors.affiliation: j The Swedish Hip Arthroplasty Register, Department of Orthopaedics , Institute of Surgical Sciences, Sahlgrenska University Hospital , Gothenburg , Sweden.
authors.forename: Johan
authors.initials: J
authors.lastname: Kärrholm
authors.affiliation: j The Swedish Hip Arthroplasty Register, Department of Orthopaedics , Institute of Surgical Sciences, Sahlgrenska University Hospital , Gothenburg , Sweden.
authors.forename: Göran
authors.initials: G
authors.lastname: Garellick
authors.affiliation: j The Swedish Hip Arthroplasty Register, Department of Orthopaedics , Institute of Surgical Sciences, Sahlgrenska University Hospital , Gothenburg , Sweden.|k Harris Orthopaedic Laboratory , Massachusetts General Hospital , Boston , MA.|l Department of Orthopaedic Surgery , Harvard Medical School , Boston , MA , USA.
authors.forename: Henrik
authors.initials: H
authors.lastname: Malchau
authors.affiliation: a Department of Orthopaedics and Traumatology , Turku University Hospital , Turku.|c The Finnish Arthroplasty Register.
authors.forename: Keijo T
authors.initials: KT
authors.lastname: Mäkelä
mesh_terms: D000368:Aged; D019644:Arthroplasty, Replacement, Hip / Q000295:instrumentation*; D001843:Bone Cements; D003718:Denmark; D005260:Female; D005387:Finland; D006085:Graft Survival; D006622:Hip Prosthesis; D006801:Humans; D008297:Male; D009664:Norway; D015207:Osteoarthritis, Hip / Q000601:surgery*; D011474:Prosthesis Design; D011475:Prosthesis Failure; D012042:Registries; D012086:Reoperation; D012307:Risk Factors; D013548:Sweden
chemical_list: D001843:Bone Cements