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. 2021 Mar 18;10(6):1260.
doi: 10.3390/jcm10061260.

Impact of the 1st and 2nd Wave of the COVID-19 Pandemic on Primary or Revision Total Hip and Knee Arthroplasty-A Cross-Sectional Single Center Study

Sebastian Simon  1   2 , Bernhard J H Frank  1 , Alexander Aichmair  1   2 , Philip P Manolopoulos  1 , Martin Dominkus  2   3 , Eva S Schernhammer  4 , Jochen G Hofstaetter  1   2
Affiliations

Impact of the 1st and 2nd Wave of the COVID-19 Pandemic on Primary or Revision Total Hip and Knee Arthroplasty-A Cross-Sectional Single Center Study

Sebastian Simon et al. J Clin Med. .

Abstract

The aim of this study was to evaluate the number of primary and revision total joint arthroplasties (TJA/rTJA) in 2020 compared to 2019. Specifically, the first and the second waves of the COVID-19 pandemic were evaluated as well as the pre-operative COVID-19 test. A cross-sectional single-center study of our prospectively maintained institutional arthroplasty registry was performed. The first COVID-19 wave and the second COVID-19 wave led to a socioeconomic lockdown in 2020. Performed surgeries, cause of revision, age, gender, and American Society of Anesthesiologists-level were analyzed. Preoperative COVID-19 testing was evaluated and nationwide COVID-19 data were compared to other countries. In 2020, there was a decrease by 16.2% in primary and revision TJAs of the hip and knee compared to 2019. We observed a reduction of 15.8% in primary TJAs and a reduction of 18.6% on rTJAs in 2020 compared to 2019. There is an incline in total hip arthroplasties (THAs) and a decline in total knee arthroplasties (TKAs) comparing 2019 to 2020. During the first wave, there was a reduction in performed primary TJAs of 86%. During the second wave, no changes were observed. This is the first study quantifying the impact of the COVID-19 pandemic on primary and revision TJAs regarding the first and second wave.

Keywords: COVID-19; hip and knee arthroplasty; pandemic impact.

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Conflict of interest statement

The authors declare no conflict of interest.

Figures

Figure 1
Figure 1
COVID-19 cases and performed tests. (a): Daily new cases per 100,000 per calendar week for Austria (AUT), Germany (GER), Italy (ITA), the UK, and the USA. The grey shaded areas visualize the first and the second wave in Austria. (b): Absolute number of performed and positive tests in our center per calendar week. The grey shaded areas visualize the first and the second wave in Austria.
Figure 2
Figure 2
COVID-19 deaths and relative number of performed primary and revision total joint arthroplasties (TJAs). (a): Relative number of COVID-19 deaths in Austria per age group. (b): Relative number of primary and revision total joint arthroplasties (TJAs) per age group.
Figure 3
Figure 3
Number of performed primary and revision total joint arthroplasties. (a): Absolute numbers of primary TJAs per calendar week, comparing 2019 and 2020. The grey shaded areas visualize the first and the second wave in Austria. (b): Absolute numbers of primary TJAs per calendar week, comparing 2019 and 2020. The grey shaded areas visualize the first and the second wave in Austria. (c): Ratio between the numbers of revision and primary TJAs per calendar week, comparing 2019 and 2020. The grey shaded areas visualize the first and the second wave in Austria.
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