Total knee arthroplasty in the past three decades: Trends in patient characteristics and implant survivorship

To explore the trends in patient characteristics and implant survivorship (IS) for primary total knee arthroplasty (TKA) over the past three decades. This retrospective study enrolled a total of 635 knees who underwent TKA from 1985 to 2014. They were divided into three groups: group A, 125 knees in...

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Published in:Modern rheumatology 2021-08
Main Authors: Nagira, Keita, Hagino, Hiroshi, Enokida, Makoto, Enokida, Shinpei, Ishida, Koji, Hayashi, Ikuta, Nagashima, Hideki
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container_title Modern rheumatology
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creator Nagira, Keita
Hagino, Hiroshi
Enokida, Makoto
Enokida, Shinpei
Ishida, Koji
Hayashi, Ikuta
Nagashima, Hideki
description To explore the trends in patient characteristics and implant survivorship (IS) for primary total knee arthroplasty (TKA) over the past three decades. This retrospective study enrolled a total of 635 knees who underwent TKA from 1985 to 2014. They were divided into three groups: group A, 125 knees in 1985-1994; group B, 203 knees in 1995-2004; and group C, 307 knees A in 2005-2014. The patient characteristics and IS were compared. The mean age of patients undergoing TKA was getting older: 65.3 ± 9.7, 69.1 ± 10.0, and 74.6 ± 8.4 years, in groups A, B, and C, respectively (p = .001). The proportion of patients
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This retrospective study enrolled a total of 635 knees who underwent TKA from 1985 to 2014. They were divided into three groups: group A, 125 knees in 1985-1994; group B, 203 knees in 1995-2004; and group C, 307 knees A in 2005-2014. The patient characteristics and IS were compared. The mean age of patients undergoing TKA was getting older: 65.3 ± 9.7, 69.1 ± 10.0, and 74.6 ± 8.4 years, in groups A, B, and C, respectively (p = .001). The proportion of patients &lt;60 years old with RA decreased (p &lt; .001), whereas that of patients ≥ 80 years old with OA increased dramatically, it was 7.0%, 14.5%, and 32.0% in groups A, B, and C, respectively (p &lt; .001). The IS free from infection was over 98% in all groups. Alternatively, the IS free from aseptic loosening become better, it was 83.7%, 95.2%, and 98.2% in groups A, B, and C, respectively (p = .014). 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title Total knee arthroplasty in the past three decades: Trends in patient characteristics and implant survivorship
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