Table 3 Survival table of fixed-bearing medial UKA
Year | Number | Withdrawn | Failures | Number at risk | Failure rate (%) | Cumulative survival (%) |
|---|---|---|---|---|---|---|
0 | 337 | 0 | 6 | 337.0 | 1.8 | 98.2 |
1 | 331 | 0 | 5 | 331.0 | 1.5 | 96.7 |
2 | 326 | 0 | 1 | 326.0 | 0.3 | 96.4 |
3 | 325 | 0 | 1 | 325.0 | 0.3 | 96.1 |
4 | 324 | 0 | 1 | 324.0 | 0.3 | 95.8 |
5 | 323 | 0 | 2 | 323.0 | 0.6 | 95.3 |
6 | 321 | 0 | 7 | 321.0 | 2.2 | 93.2 |
7 | 314 | 0 | 2 | 314.0 | 0.7 | 92.6 |
8 | 312 | 4 | 0 | 310.0 | 0.0 | 92.6 |
9 | 308 | 24 | 1 | 296.0 | 0.3 | 92.2 |
10 | 283 | 13 | 2 | 276.5 | 0.7 | 91.6 |
11 | 268 | 25 | 0 | 255.5 | 0.0 | 91.6 |
12 | 243 | 13 | 3 | 236.5 | 1.3 | 90.4 |
13 | 227 | 14 | 1 | 220.0 | 0.5 | 90.0 |
14 | 212 | 30 | 0 | 197.0 | 0.0 | 90.0 |
15 | 182 | 42 | 0 | 161.0 | 0.0 | 90.0 |
16 | 140 | 53 | 0 | 113.5 | 0.0 | 90.0 |
17 | 87 | 38 | 0 | 68.0 | 0.0 | 90.0 |
18 | 49 | 49 | 0 | 24.5 | 0.0 | 90.0 |