Blar i Bergen Open Research Archive på forfatter "Varnum, Claus"
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Does choice of bearings influence the survival of cement-less total hip arthroplasty in patients aged 20–55 years? Comparison of 21,594 patients reported to the Nordic Arthroplasty Register Association dataset 2005–2017
Mikkelsen, Rasmus Tyrsted; Overgaard, Søren; Pedersen, Alma B.; Kärrholm, Johan; Rolfson, Ola; Fenstad, Anne Marie; Furnes, Ove Nord; Hallan, Geir; Mäkelä, Keijo; Eskelinen, Antti; Varnum, Claus (Journal article; Peer reviewed, 2023)Background and purpose: The bearings with the best survivorship for young patients with total hip arthroplasty (THA) should be identified. We compared hazard ratios (HR) of revision of primary stemmed cementless THAs with ... -
Impact of hip arthroplasty registers on orthopaedic practice and perspectives for the future
Varnum, Claus; Pedersen, Alma Bečić; Rolfson, Ola; Rogmark, Cecilia; Furnes, Ove; Hallan, Geir; Mäkelä, Keijo; de Steiger, Richard; Porter, Martyn; Overgaard, Søren (Peer reviewed; Journal article, 2019)Total hip arthroplasty (THA) registers are established in several countries to collect data aiming to improve the results after THA. Monitoring of adverse outcomes after THA has focused mainly on revision surgery, but ... -
Increased risk of revision of cementless stemmed total hip arthroplasty with metal-on-metal bearingsData from the Nordic Arthroplasty Register Association
Varnum, Claus; Pedersen, Alma B; Mäkelä, Keijo; Eskelinen, Antti; Havelin, Leif Ivar; Furnes, Ove; Kärrholm, Johan; Garellick, Göran; Overgaard, Søren (Peer reviewed; Journal article, 2015)Background and purpose — Data from the national joint registries in Australia and England and Wales have revealed inferior medium-term survivorship for metal-on-metal (MoM) total hip arthroplasty (THA) than for ...