Joint Replacements

 

 

 

Number of Hip and Knee Replacements

In 2021-2022, 117,078 hip and knee replacements were performed in Canada.   This represented a 5.9% increase from the 2020-2021 but was still fewer than before the pandemic.

In 2021-2022, there was a 7.4% increase in the number of hip and knee replacements performed to treat osteoarthritis from 2020-2021.

58.635 hip and 58,443 knee replacements were performed in 2021-2022. These numbers are 6.0% and 5.7% higher compared to 2020 – 2021.

 

Demographics

57% of hip replacements and 58% of knee replacements were performed on females.

The most common age group for hip replacements was age 75 and older (female patients 44%; male patients 31.6%).

The most common age group for knee replacements was age 65 to 74 (female patients 41.2%; male patients 42.3%)

The most common diagnosis for primary hip and knee replacements patients was osteoarthritis (OA) (hip OA 69.3%, knee OA 99.4%)

 

Numbers of Replacements by Province in 2021-2022

  • Newfoundland – Hip  = 993  /  Knee = 959
  • Prince Edward Island – Hip = 380  / Knee = 505
  • Nova Scotia – Hip  =1758 / Knee = 1,690
  • New Brunswick – Hip =1524 / Knee = 1545 
  • Quebec –  Hip = 11,275 / Knee = 10,832
  • Ontario – Hip = 22,985 / Knee = 24,376
  • Manitoba – Hip  = 2,194 / Knee = 2,125
  • Saskatchewan – Hip =2,044 / Knee = 1.930
  • Alberta – Hip = 6,084 / Knee = 5.398
  • British Columbia – Hip = 9,322 / Knee = 8,970
  • Yukon – Hip = 40 / Knee = 83
  • Northwest Territories – Hip – 36 / Knee = 30 

 

Day Surgeries

The majority of hip and knee replacements for osteoarthritis are performed in an inpatient setting, however, since 2015-2016 there has been a significant increase in the number of day surgeries performed compared to in-patient surgeries.

Between 2015-2016 and 2018-2019 the annual proportion of day surgeries was below 1.0%.

In 2021-2022, 18% of hip replacements for osteoarthritis were performed as day surgeries compared to 10.1% in 2020-2021.

In 2021-2022, 14% of knee replacements for osteoarthritis were performed as day surgeries compared to 6.9% in 2020-2021.

For hips, day surgery volumes increased 147-fold from 2015-2017 to 2021-2022.

For knees, day surgery volumes increased 66-fold from 2015-2017 to 2021-2022.

 

Revisions

There were 4.6% more hip and knee revisions performed in 2021-2022 (8,942) versus 2020-2021 (8,548).

The top three reasons for hip and knee revisions combined were infection (32.5%), instability (14.3%) and aseptic loosening (14.0%).

On average, patients undergoing inpatient revision surgery stayed in hospital more than twice as long as patient undergoing primary surgery (9.1 days versus 3.9 days, respectively).

 

Costs

Over $1.26 billion (including physician costs and excluding rehabilitation costs) was spent on hip and knee replacement surgeries in Canada in 2021-2022, compared with $1.2 billion the previous year.

The average estimated hospital cost (including physician costs and excluding rehabilitation costs) for a hip and knee replacement in 2021-2022 was $11,979, which is similar to the cost of 2020-2021 ($11, 945).

The average estimated hospital cost (including physician costs and excluding rehabilitation costs) for an inpatient surgery was $12,402, which was 32.1% higher than the average estimated cost for a day surgery ($9,387).

The average estimated hospital cost (including physician costs and excluding rehabilitation) for a revision surgery was $19,830 – almost 73% higher than for a primary joint surgery ($11,464).

Data Source

Canadian Institute for Health Information. Hip and Knee Replacements in Canada:
CJRR Annual Report, 2021–2022. Ottawa, ON: CIHI; 2023

Cette publication est aussi disponible en français sous le titre Arthroplasties de la
hanche et du genou au Canada : rapport annuel du RCRA, 2021-2022.
ISBN 978-1-77479-223-0 (PDF)

To read a full copy  of the 2021-2022 Hip and Knee Replacements Report, click here.

 

 

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