Different incidences of knee arthroplasty in the Nordic countries: A population-based study from the Nordic Arthroplasty Register Association

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Different incidences of knee arthroplasty in the Nordic countries : A population-based study from the Nordic Arthroplasty Register Association. / NiemeläInen, Mika J.; MäKelä, Keijo T.; Robertsson, Otto; W-Dahl, Annette; Furnes, Ove; Fenstad, Anne M.; Pedersen, Alma B.; Schrøder, Henrik M.; Huhtala, Heini; Eskelinen, Antti.

In: Acta Orthopaedica, Vol. 88, No. 2, 2017, p. 173-178.

Research output: Contribution to journalArticle

Harvard

NiemeläInen, MJ, MäKelä, KT, Robertsson, O, W-Dahl, A, Furnes, O, Fenstad, AM, Pedersen, AB, Schrøder, HM, Huhtala, H & Eskelinen, A 2017, 'Different incidences of knee arthroplasty in the Nordic countries: A population-based study from the Nordic Arthroplasty Register Association', Acta Orthopaedica, vol. 88, no. 2, pp. 173-178. https://doi.org/10.1080/17453674.2016.1275200

APA

NiemeläInen, M. J., MäKelä, K. T., Robertsson, O., W-Dahl, A., Furnes, O., Fenstad, A. M., ... Eskelinen, A. (2017). Different incidences of knee arthroplasty in the Nordic countries: A population-based study from the Nordic Arthroplasty Register Association. Acta Orthopaedica, 88(2), 173-178. https://doi.org/10.1080/17453674.2016.1275200

CBE

NiemeläInen MJ, MäKelä KT, Robertsson O, W-Dahl A, Furnes O, Fenstad AM, Pedersen AB, Schrøder HM, Huhtala H, Eskelinen A. 2017. Different incidences of knee arthroplasty in the Nordic countries: A population-based study from the Nordic Arthroplasty Register Association. Acta Orthopaedica. 88(2):173-178. https://doi.org/10.1080/17453674.2016.1275200

MLA

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Author

NiemeläInen, Mika J. ; MäKelä, Keijo T. ; Robertsson, Otto ; W-Dahl, Annette ; Furnes, Ove ; Fenstad, Anne M. ; Pedersen, Alma B. ; Schrøder, Henrik M. ; Huhtala, Heini ; Eskelinen, Antti. / Different incidences of knee arthroplasty in the Nordic countries : A population-based study from the Nordic Arthroplasty Register Association. In: Acta Orthopaedica. 2017 ; Vol. 88, No. 2. pp. 173-178.

RIS

TY - JOUR

T1 - Different incidences of knee arthroplasty in the Nordic countries

T2 - Acta Orthopaedica

AU - NiemeläInen, Mika J.

AU - MäKelä, Keijo T.

AU - Robertsson, Otto

AU - W-Dahl, Annette

AU - Furnes, Ove

AU - Fenstad, Anne M.

AU - Pedersen, Alma B.

AU - Schrøder, Henrik M.

AU - Huhtala, Heini

AU - Eskelinen, Antti

PY - 2017

Y1 - 2017

N2 - Background and purpose — The annual number of total knee arthroplasties (TKAs) has increased worldwide in recent years. To make projections regarding future needs for primaries and revisions, additional knowledge is important. We analyzed and compared the incidences among 4 Nordic countries Patients and methods — Using Nordic Arthroplasty Register Association (NARA) data from 4 countries, we analyzed differences between age and sex groups. We included patients over 30 years of age who were operated with TKA or unicompartmental knee arthroplasty (UKA) during the period 1997–2012. The negative binomial regression model was used to analyze changes in general trends and in sex and age groups. Results — The average annual increase in the incidence of TKA was statistically significant in all countries. The incidence of TKA was higher in women than in men in all 4 countries. It was highest in Finland in patients aged 65 years or more. At the end of the study period in 2012, Finland’s total incidence was double that of Norway, 1.3 times that of Sweden and 1.4 times that of Denmark. The incidence was lowest in the youngest age groups (< 65 years) in all 4 countries. The proportional increase in incidence was highest in patients who were younger than 65 years. Interpretation — The incidence of knee arthroplasty steadily increased in the 4 countries over the study period. The differences between the countries were considerable, with the highest incidence in Finland. Patients aged 65 years or more contributed to most of the total incidence of knee arthroplasty.

AB - Background and purpose — The annual number of total knee arthroplasties (TKAs) has increased worldwide in recent years. To make projections regarding future needs for primaries and revisions, additional knowledge is important. We analyzed and compared the incidences among 4 Nordic countries Patients and methods — Using Nordic Arthroplasty Register Association (NARA) data from 4 countries, we analyzed differences between age and sex groups. We included patients over 30 years of age who were operated with TKA or unicompartmental knee arthroplasty (UKA) during the period 1997–2012. The negative binomial regression model was used to analyze changes in general trends and in sex and age groups. Results — The average annual increase in the incidence of TKA was statistically significant in all countries. The incidence of TKA was higher in women than in men in all 4 countries. It was highest in Finland in patients aged 65 years or more. At the end of the study period in 2012, Finland’s total incidence was double that of Norway, 1.3 times that of Sweden and 1.4 times that of Denmark. The incidence was lowest in the youngest age groups (< 65 years) in all 4 countries. The proportional increase in incidence was highest in patients who were younger than 65 years. Interpretation — The incidence of knee arthroplasty steadily increased in the 4 countries over the study period. The differences between the countries were considerable, with the highest incidence in Finland. Patients aged 65 years or more contributed to most of the total incidence of knee arthroplasty.

UR - http://www.scopus.com/inward/record.url?scp=85008395755&partnerID=8YFLogxK

U2 - 10.1080/17453674.2016.1275200

DO - 10.1080/17453674.2016.1275200

M3 - Article

VL - 88

SP - 173

EP - 178

JO - Acta Orthopaedica

JF - Acta Orthopaedica

SN - 1745-3682

IS - 2

ER -