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Ben-Shlomo Y, Blom A, Boulton C, et al. The National Joint Registry 17th Annual Report 2020 [Internet]. London: National Joint Registry; 2020 Sep.

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The National Joint Registry 17th Annual Report 2020 [Internet].

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Table 3.A3KM estimates of cumulative revision (95% CI) of primary ankle replacement, by gender and age. Blue italics signify that fewer than 250 cases remained at risk at these time points.

Age at primary (years)Number of primariesTime since primary
1 year3 year5 years7 years9 years
All cases 6,589 0.73 (0.54-0.98) 3.56 (3.08-4.12) 6.38 (5.65-7.20) 8.18 (7.25-9.22) 9.72 (8.50-11.10)
Male 3,931 0.73 (0.50-1.07) 3.32 (2.73-4.04) 5.97 (5.06-7.03) 7.57 (6.44-8.89) 8.81 (7.36-10.54)
<651,2480.99 (0.55-1.77)5.00 (3.78-6.60)8.42 (6.63-10.65) 10.19 (8.08-12.82) 12.11 (9.28-15.73)
65 to 741,6600.58 (0.30-1.12)2.90 (2.10-4.00)5.79 (4.46-7.50)8.04 (6.27-10.28) 9.15 (7.08-11.77)
≥751,0230.64 (0.29-1.41)1.82 (1.07-3.09)2.90 (1.82-4.61) 2.90 (1.82-4.61) 2.90 (1.82-4.61)
Female 2,658 0.74 (0.47-1.17) 3.90 (3.14-4.85) 6.97 (5.82-8.33) 9.01 (7.53-10.76) 10.88 (8.94-13.22)
≥659860.77 (0.37-1.60)5.26 (3.89-7.09)10.02 (7.87-12.71) 12.82 (10.16-16.12) 14.97 (11.57-19.26)
65 to 741,0390.96 (0.50-1.83)4.08 (2.89-5.74)6.93 (5.21-9.20) 9.28 (6.94-12.35) 11.34 (8.29-15.41)
≥756330.32 (0.08-1.28)1.29 (0.57-2.92) 1.59 (0.75-3.38) 1.59 (0.75-3.38) 2.50 (1.06-5.82)

Note: Arthrodesis and amputation revision procedures may be under-reported in the NJR.

From: 3., Outcomes after joint replacement 2003 to 2019

© National Joint Registry 2020.

This article is distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0/), which permits unrestricted use and redistribution provided that the original author and source are credited.

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