The results of 479 thumb carpometacarpal joint replacements reported in the Norwegian Arthroplasty Register.
In this study we report the results of thumb carpometacarpal (CMC) joint replacements in the Norwegian population over a 17-year period. In total, 479 primary replacements performed from 1994 to 2011 were identified in the Norwegian Arthroplasty Register. Implant survival and risk of revision were analyzed using Cox regression analyses. Four different implant designs were compared and time trends were analyzed. The overall 5 and 10 year survivals were 91% and 90%, respectively. The newer metal total arthroplasties did not outperform the older silicone and mono-block implants. At 5 years, the implant survival ranged from 90% to 94% for the different implant brands. Gender, age, and diagnosis did not influence the risk of revision. The incidence of thumb CMC joint replacement did not change during the study period. Despite relatively satisfactory implant survivorship in our register study, current evidence does not support widespread implementation of thumb CMC replacements.
The Norwegian Arthroplasty Register, Department of Orthopaedic Surgery, Haukeland University Hospital, Bergen, Norway Section for Orthopaedic Surgery, Department of Clinical Medicine, University of Bergen, Bergen, Norway yngvar.krukhaug@helse-bergen.no.
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Krukhaug
The Norwegian Arthroplasty Register, Department of Orthopaedic Surgery, Haukeland University Hospital, Bergen, Norway Department of Health, University Research Bergen, Bergen, Norway.
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Lie
The Norwegian Arthroplasty Register, Department of Orthopaedic Surgery, Haukeland University Hospital, Bergen, Norway Section for Orthopaedic Surgery, Department of Clinical Medicine, University of Bergen, Bergen, Norway.
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Havelin
The Norwegian Arthroplasty Register, Department of Orthopaedic Surgery, Haukeland University Hospital, Bergen, Norway Section for Orthopaedic Surgery, Department of Clinical Medicine, University of Bergen, Bergen, Norway.
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Furnes
The Norwegian Arthroplasty Register, Department of Orthopaedic Surgery, Haukeland University Hospital, Bergen, Norway Section for Orthopaedic Surgery, Department of Clinical Medicine, University of Bergen, Bergen, Norway.
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Hove
The Norwegian Arthroplasty Register, Department of Orthopaedic Surgery, Haukeland University Hospital, Bergen, Norway.
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Hallan
D000328:Adult; D017677:Age Distribution; D000368:Aged; D000369:Aged, 80 and over; D001168:Arthritis / Q000601:surgery; D050806:Arthroplasty, Replacement, Finger / Q000706:statistics & numerical data*; D052737:Carpometacarpal Joints / Q000601:surgery*; D005260:Female; D006801:Humans; D007595:Joint Prosthesis / Q000706:statistics & numerical data; D008297:Male; D008875:Middle Aged; D009664:Norway / Q000453:epidemiology; D011475:Prosthesis Failure; D012042:Registries; D012086:Reoperation / Q000706:statistics & numerical data; D017678:Sex Distribution; D013933:Thumb / Q000601:surgery*; D055815:Young Adult
Elektra; Motec; Swanson Silastic; Swanson titanium basal thumb; Thumb CMC joint replacement; register study