Changing incidence of primary total hip arthroplasty and total knee arthroplasty for primary osteoarthritis

Changing incidence of primary total hip arthroplasty and total knee arthroplasty for primary osteoarthritis

This study reports on the incidence of primary total hip arthroplasty (THA) and total knee arthroplasty (TKA) for primary osteoarthritis in Australia. Age-specific and gender-specific numbers for Australia, 1994 through 1998, and South Australia, 1988 through 1998, were obtained. Incidences were cal...

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Bibliographic Details
Published in:The Journal of arthroplasty Vol. 17; no. 3; pp. 267 - 273
Main Authors: Wells, V.M., Hearn, T.C., McCaul, K.A., Anderton, S.M., Wigg, A.E.R., Graves, S.E.
Format: Journal Article
Language:English
Published: United States Elsevier Inc 01-04-2002
Subjects:
Adult
Aged
Aged, 80 and over
Arthroplasty, Replacement, Hip - statistics & numerical data
Arthroplasty, Replacement, Knee - statistics & numerical data
Australia
Female
Humans
Incidence
Male
Middle Aged
Osteoarthritis, Hip - surgery
Osteoarthritis, Knee - surgery
Poisson Distribution
primary osteoarthritis (OA)
Regression Analysis
total hip arthroplasty (THA)
total knee arthroplasty (TKA)
Australia
primary osteoarthritis (OA)
total knee arthroplasty (TKA)
Australia
incidence
total hip arthroplasty (THA)
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Summary:This study reports on the incidence of primary total hip arthroplasty (THA) and total knee arthroplasty (TKA) for primary osteoarthritis in Australia. Age-specific and gender-specific numbers for Australia, 1994 through 1998, and South Australia, 1988 through 1998, were obtained. Incidences were calculated per 100,000 population. In Australia, primary THA increased from 50.9/105 (1994) to 60.9/105 (1998). TKA increased from 56.4/105 to 76.8/105. Stratified by age and gender, changes in incidence for South Australia with respect to time were tested using regression analysis. South Australia showed a significant increase in the overall incidence of THA (P=.012) and TKA (P<.001), although this was not uniform across all age groups. No significant gender differences were found. The incidence of THA is increasing, and the incidence of TKA is increasing at a greater rate.
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ISSN:0883-5403
1532-8406
DOI:10.1054/arth.2002.30414