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Review
. 2014 May-Jun;24(3):223-30.
doi: 10.5301/hipint.5000105. Epub 2014 Feb 3.

Hemiarthroplasties after hip fractures in Norway and Sweden: a collaboration between the Norwegian and Swedish national registries

Jan-Erik Gjertsen  1 , Anne Marie Fenstad, Olof Leonardsson, Lars Birger Engesæter, Johan Kärrholm, Ove Furnes, Göran Garellick, Cecilia Rogmark
Affiliations
Review

Hemiarthroplasties after hip fractures in Norway and Sweden: a collaboration between the Norwegian and Swedish national registries

Jan-Erik Gjertsen et al. Hip Int. 2014 May-Jun.

Abstract

National registration of hemiarthroplasties after hip fractures has been established in both Norway and Sweden. We aimed to investigate differences in demographics, choice of implant selection, surgical approaches, and reoperations between the Norwegian Hip Fracture Register (NHFR) and the Swedish Hip Arthroplasty Register (SHAR). As part of the Nordic Arthroplasty Register Association (NARA) project a common hemiarthroplasty dataset has been established. 36,989 primary hemiarthroplasties (HAs) for acute hip fractures reported to NHFR (n = 12,761) and SHAR (n = 24,228) for the period 2005-2010 were included. Cemented prostheses were used in 78% of the operations in Norway and in 95% of the patients in Sweden. In Norway HAs almost exclusively had bipolar design (98%), whereas in Sweden HAs with unipolar design were used in 42% of the cases. Monoblock (non-modular) prostheses were uncommon, but still more frequently used in Sweden than in Norway (6.9% and 2.1% respectively). The lateral approach was more common in Norway (83%) than in Sweden (52%), where the posterior approach was used in 42% of the cases. The five-year survival of all HAs was 95.5% (95% CI: 94.8-96.2) in Norway and 94.8% (95% CI: 94.4-95.3) in Sweden. We concluded that surprisingly large differences between the two countries in demographics, implant design, and surgical technique had been revealed. This common dataset enables further investigations of the impact of these differences on revision rates and mortality.

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Conflict of interest statement

Conflict of Interest: None.

Figures

Fig. 1
Fig. 1
Time trends of implant design used in: A) Norway; and B) Sweden.
Fig. 2
Fig. 2
Time trends of fixation technique for hemiprostheses in: A) Norway; and B) Sweden.
Fig. 3
Fig. 3
Time trends of surgical approach used for hemiprostheses in: A) Norway; and B) Sweden.
Fig. 4
Fig. 4
Kaplan - Meier estimated curves with 95% confidence intervals until reoperation of any cause for: A) all primary hemiarthroplasties; B) uncemented hemiarthroplasties; and C) cemented hemiarthroplasties in Norway and Sweden.
See this image and copyright information in PMC

References

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