Table 5.
Reasons for revision by stem type. Values are frequency (%) (multiple reasons allowable)
| Reason for revision | Total n = 292,987 | Exeter (taper-slip) n = 176,189 | All other taper-slip n = 69,043 | Charnley (composite beam) n = 23,141 | All other composite beam n = 24,445 | p-value |
|---|---|---|---|---|---|---|
| Aseptic loosening stem | 490 | 169 (0.1) | 97 (0.1) | 148 (0.6) | 76 (0.3) | < 0.001 |
| Aseptic loosening socket | 722 | 395 (0.2) | 147 (0.2) | 83 (0.4) | 97 (0.4) | < 0.001 |
| Dislocation | 1140 | 638 (0.4) | 296 (0.4) | 108 (0.5) | 98 (0.4) | 0.02 |
| Stem fracture | 50 | 30 (0.02) | 16 (0.02) | 2 (0.01) | 2 (0.01) | 0.3 |
| Infection | 921 | 516 (0.3) | 181 (0.3) | 125 (0.5) | 99 (0.4) | < 0.001 |
| Stem lysis | 127 | 48 (0.03) | 28 (0.04) | 32 (0.14) | 19 (0.08) | < 0.001 |
| Pain | 570 | 285 (0.2) | 157 (0.2) | 74 (0.3) | 54 (0.2) | < 0.001 |
| Peri-prosthetic fracture stem | 437 | 215 (0.1) | 192 (0.3) | 18 (0.1) | 12 (0.05) | < 0.001 |
| Other | 1,035 | 559 (0.3) | 270 (0.4) | 104 (0.4) | 102 (0.4) | < 0.001 |
| Total | 5,492 (1.9) | 2,855 (1.6) | 1,384 (2.0) | 694 (3.0) | 559 (2.3) | < 0.001 |