A Population-Based Study of Trends in the Use of Total Hip and Total Knee Arthroplasty, 1969-2008

Singh, Jasvinder A.; Vessely, Michael B.; Harmsen, W. Scott; Schleck, Cathy D.; Melton III, L. Joseph; Kurland, Robert L.; Berry, Daniel J.
October 2010
Mayo Clinic Proceedings;Oct2010, Vol. 85 Issue 10, p898
Academic Journal
OBJECTIVE: To study the rates of use of total hip arthroplasty (THA) and total knee arthroplasty (TKA) during the past 4 decades. METHODS: The Rochester Epidemiology Project was used to Identity all Oimsted County, Minnesota, residents who underwent THA or TKA from January 1, 1969, through December 31, 2008. We used a population-based approach because few data are available on long-term trends in the use of THA and TKA In the United States. Rates of use were determined by age- and sex-specific person-years at risk. Poisson regression was used to assess temporal trends by sex and age group. RESULTS: The age- and sex-adjusted use of THA increased from 50.2 (95% confidence Interval [Cl], 40.5-59.8) per 100,000 person-years In 1969-1972 to 145.5 (95% Cl, 134.2-156.9) in 2005-2008, whereas TKA increased markedly from 31.2 (95% Cl, 25.3-37.1) per 100,000 person-years in 1971-1976 to 220.9 (95% Cl, 206.7-235.0) in 2005-2008. For both procedures, use was greater among females, and the rate generally Increased with age. CONCLUSION: In this community, TRA and THA use rates have increased steadily since the introduction of the procedures and continue to increase for all age groups. On the basis of these population-based data, the probable need for TKA and THA exceeds current federal agency projections.


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