Table 2.
Comparison of projected 2020 to 2030 primary and revision hip and knee arthroplasty surgical site infections (SSIs) with and without an infection rate reduction of 30%.
| 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 | 2027 | 2028 | 2029 | 2030 | Total | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| All Arthroplasties | ||||||||||||
| SSIs without rate reduction | 6,569 | 6,671 | 6,773 | 6,874 | 6,972 | 7,076 | 7,171 | 7,262 | 7,349 | 7,430 | 7,506 | 77,654 |
| SSIs with rate reduction | 4,598 | 4,670 | 4,741 | 4,812 | 4,881 | 4,953 | 5,020 | 5,083 | 5,144 | 5,200 | 5,254 | 54,356 |
| SSIs prevented with rate reduction | 1,971 | 2,001 | 2,032 | 2,062 | 2,091 | 2,123 | 2,151 | 2,179 | 2,205 | 2,230 | 2,252 | 23,297 |
| Primary and Revision Arthroplasties | ||||||||||||
| Hip SSIs without rate reduction | 3,510 | 3,567 | 3,624 | 3,682 | 3,738 | 3,798 | 3,854 | 3,909 | 3,964 | 4,015 | 4,063 | 41,724 |
| Hip SSIs with rate reduction | 2,457 | 2,497 | 2,537 | 2,577 | 2,617 | 2,658 | 2,698 | 2,736 | 2,775 | 2,810 | 2,844 | 29,206 |
| SSIs prevented with rate reduction | 1,053 | 1,070 | 1,087 | 1,105 | 1,121 | 1,140 | 1,156 | 1,173 | 1,189 | 1,205 | 1,219 | 12,518 |
| Knee SSIs without rate reduction | 3,059 | 3,104 | 3,149 | 3,192 | 3,234 | 3,278 | 3,317 | 3,353 | 3,385 | 3,415 | 3,443 | 35,929 |
| Knee SSIs with rate reduction | 2,141 | 2,173 | 2,204 | 2,235 | 2,264 | 2,295 | 2,322 | 2,347 | 2,369 | 2,390 | 2,410 | 25,150 |
| SSIs prevented with rate reduction | 918 | 931 | 945 | 957 | 970 | 983 | 995 | 1,006 | 1,016 | 1,025 | 1,033 | 10,779 |
| Primary Arthroplasties | ||||||||||||
| Hip SSIs without rate reduction | 2,674 | 2,708 | 2,745 | 2,782 | 2,818 | 2,859 | 2,898 | 2,936 | 2,976 | 3,011 | 3,046 | 31,453 |
| Hip SSIs with rate reduction | 1,872 | 1,896 | 1,921 | 1,947 | 1,973 | 2,002 | 2,029 | 2,055 | 2,083 | 2,108 | 2,132 | 22,018 |
| SSIs prevented with rate reduction | 802 | 812 | 824 | 835 | 845 | 857 | 869 | 881 | 893 | 903 | 914 | 9,435 |
| Knee SSIs without rate reduction | 2,216 | 2,238 | 2,263 | 2,286 | 2,309 | 2,335 | 2,358 | 2,379 | 2,397 | 2,414 | 2,430 | 25,625 |
| Knee SSIs with rate reduction | 1,551 | 1,567 | 1,584 | 1,600 | 1,616 | 1,635 | 1,651 | 1,665 | 1,678 | 1,690 | 1,701 | 17,938 |
| SSIs prevented with rate reduction | 665 | 671 | 679 | 686 | 693 | 700 | 707 | 714 | 719 | 724 | 729 | 7,687 |
| Revision Arthroplasties | ||||||||||||
| Hip SSIs without rate reduction | 836 | 859 | 880 | 900 | 920 | 938 | 956 | 973 | 989 | 1,003 | 1,017 | 10,271 |
| Hip SSIs with rate reduction | 585 | 601 | 616 | 630 | 644 | 657 | 669 | 681 | 692 | 702 | 712 | 7,189 |
| SSIs prevented with rate reduction | 251 | 258 | 264 | 270 | 276 | 281 | 287 | 292 | 297 | 301 | 305 | 3,082 |
| Knee SSIs without rate reduction | 843 | 865 | 887 | 906 | 925 | 943 | 959 | 974 | 988 | 1,001 | 1,012 | 10,303 |
| Knee SSIs with rate reduction | 590 | 606 | 621 | 635 | 648 | 660 | 671 | 682 | 691 | 700 | 708 | 7,212 |
| SSIs prevented with rate reduction | 253 | 259 | 266 | 271 | 277 | 283 | 288 | 292 | 297 | 301 | 304 | 3,091 |