Table 3.
Crude revision rates for patients within the examined groups of fixations at 2 and 5 years
| Revision rate (CI) % |
|||
|---|---|---|---|
| Fixation point and group | n (revisions) | 2 years | 5 years |
| Femoral fixationa | |||
| Cortical fixation | |||
| Endobutton | 14,106 (342) | 2.7 (2.4–3.1) | 5.0 (4.4–5.7) |
| Other | 4,352 (115) | 2.2 (1.7–2.7) | 4.5 (3.6–5.4) |
| Transfemoral fixation | |||
| Rigidfix | 12,041 (316) | 1.7 (1.4–1.9) | 3.4 (3.0–3.8) |
| Transfix | 3,652 (100) | 1.5 (1.1–1.9) | 3.5 (2.8–4.1) |
| Other | 520 (32) | 4.2 (2.5–6.0) | 6.1 (4.0–8.3) |
| Interference screw | 3,453 (119) | 2.7 (2.1–3.3) | 5.2 (4.2–6.2) |
| Other/unknown | 542 (18) | 2.7 (1.1–4.2) | 5.4 (2.7–8.0) |
| Tibial fixationb | |||
| Cortical fixation | 4,814 (159) | 2.8 (2.3–3.3) | 4.6 (3.8–5.3) |
| Interference screw | 18,640 (462) | 2.2 (2.0–2.5) | 4.2 (3.7–4.6) |
| Intrafix | 13,014 (355) | 1.9 (1.6–2.1) | 4.0 (3.6–4.5) |
| Retro interference screw | 508 (27) | 3.4 (1.7–5.1) | 6.7 (4.1–9.3) |
| Rigidfix | 867 (18) | 1.3 (0.4–2.0) | 2.5 (1.4–3.7) |
| Other/unknown | 823 (21) | 1.8 (0.6–2.9) | 4.7 (2.7–6.8) |
Log-rank test for difference in overall revision between groups:
a
p-value <0.001
b
p-value =0.001