Table 1 Characteristics of included studies
| Â | Author and Year | Country | Follow-Up (Years) | Mean Duration (years) | Analysis Group | Total TKA | Annual Incidence (%) | Lower 95% CI | Upper 95% CI | ||
|---|---|---|---|---|---|---|---|---|---|---|---|
Clinical Cohort | Selected for More Severe OA | KL ≥ 3 | Bernard et al. (2004) [22] | U.K. | 5 | Unknown | 100 | 11 | 2.20% | 1.10% | 3.90% |
KLÂ =Â 4 | Bin et al. (2008) [34] | South Korea | 4 | 4 | 68 | 4 | 1.36% | 0.37% | 3.43% | ||
Outerbridge ≥2 | Koyonos et al. (2009)a [16] | U.S.A. | 1 | 0.5 | 30 | 1 | 3.33% | 0.08% | 17.22% | ||
0 | 29 | 0 | 0.00% | 0.00% | 11.94% | ||||||
KL ≥ 3 | Lyu et al. (2015) [35] | Taiwan | 1 | 1 | 657 | 3 | 0.46% | 0.30% | 0.62% | ||
KLÂ =Â 4 | Pearse and Craig (2003) [36] | U.K. | 4 | 4 | 126 | 39 | 7.14% | 5.13% | 9.64% | ||
KL ≥ 3 | Rand et al. (1985) [37] | U.S.A. | 2 | 0.5 | 87 | 2 | 1.15% | 0.14% | 4.09% | ||
Outerbridge ≥2 | Skedros et al. (2014) [30] | U.S.A. | 3 | 3 | 42 | 11 | 8.73% | 4.44% | 15.08% | ||
KL ≥ 3 | Steadman et al. (2013) [31] | U.S.A. | 10 | 4.4 | 69 | 43 | 6.23% | 4.55% | 8.30% | ||
Unselected | Â | Â | Â | 2 | 8 | 0 | 0.00% | 0.00% | 8.81% | ||
Jackson et al. (2003)a [25] | U.S.A. | 5 | 32 | 0 | 0.00% | 0.00% | 2.28% | ||||
39 | 3 | 1.54% | 0.32% | 4.43% | |||||||
| Â | Â | Â | 42 | 12 | 5.71% | 2.99% | 9.77% | ||||
McGinley et al. (1999) [27] | U.S.A. | 13 | 7 | 91 | 30 | 2.50% | 1.69% | 3.55% | |||
Raaijmaakers et al. (2010) [28] | Belgium | 3 | 1 | 183 | 40 | 6.83% | 4.92% | 9.18% | |||
Sansone et al. (2015) [29] | Italy | 20 | 13.3 | 75 | 12 | 0.80% | 0.41% | 1.39% | |||
Registry | Selected for Older Age | Age > 60 | Dearing et al. (2010) [38] | U.K. | 9 | 6 | 3033 | 800 | 2.93% | 2.73% | 3.14% |
Age > 65 | Johanson et al. (2011) [26] | U.S.A. | 10 | 9 | 40,804 | 13,261 | 3.25% | 3.20% | 3.30% | ||
Age > 50 | Wai et al. (2002) [32] | Canada | 3 | 3 | 6212 | 1146 | 6.15% | 5.81% | 6.50% | ||
Unselected | Adelani et al. (2016)a [39] | U.S.A. | 4 | 2 | 6972 | 266 | 0.95% | 0.84% | 1.07% | ||
10,645 | 496 | 1.16% | 1.06% | 1.27% | |||||||
Fedorka et al. (2014) [23] | U.S.A. | 5 | Unknown | 159,975 | 8319 | 1.04% | 1.02% | 1.06% | |||
Harris et al. (2013) [40] | Australia | 8 | 2 | 121,115 | 9110 | 0.94% | 0.92% | 0.96% | |||
| Â | U.K 1993 | Â | Unknown | 6158 | 985 | 3.20% | 3.00% | 3.40% | |||
9048 | 1728 | 3.82% | 3.64% | 4.00% | |||||||
Hawker et al. (2008)a [24] | UK 1997 Canada 1993 | 5 | |||||||||
3803 | 745 | 3.92% | 3.65% | 4.20% | |||||||
| Â | Canada 1997 | Â | |||||||||
3425 | 712 | 4.16% | 3.86% | 4.47% | |||||||
Zikria et al. (2016) [41] | U.S.A. | 7 | Unknown | 842 | 131 | 2.22% | 1.86% | 2.63% | |||