Table 4.
Femoral head Articulation | n (revisions) | Crude hazard ratio for revision (CI) | Adjusted hazard ratioa (CI) |
---|---|---|---|
22–28 mm (n = 73,114) | |||
MoPE | 27,423 (843) | 1.0 | 1.0 |
MoHXLPE | 7,236 (256) | 1.3 (1.2–1.5)c | 1.1 (1.0–1.3) |
CoPE | 22,165 (660) | 1.0 (0.9–1.1) | 0.9 (0.8–1.0)b |
CoHXLPE | 14,188 (367) | 1.1 (1.0–1.2) | 0.9 (0.7–1.0)b |
CoC | 1,406 (42) | 1.0 (0.7–1.4) | 0.8 (0.6–1.1) |
Ox(HXL)PE | 696 (17) | 0.8 (0.5–1.4) | 0.7 (0.5–1.2) |
32 mm (n = 96,330) | |||
MoPE | 9,908 (179) | 1.0 | 1.0 |
MoHXLPE | 17,248 (377) | 1.4 (1.1–1.6)b | 1.1 (0.9–1.3) |
CoPE | 17,888 (525) | 1.5 (1.3–1.8) c | 1.3 (1.1–1.6)b |
CoHXLPE | 40,496 (877) | 1.3 (1.1–1.6)b | 1.0 (0.9–1.2) |
CoC | 3,279 (99) | 1.5 (1.2–1.9)b | |
Ox(HXL)PE | 7,511 (158) | 1.1 (0.9–1.4) | 0.9 (0.8–1.2) |
36 mm (n = 39,017) | |||
MoPE | 13 (0) | n.a.d | n.a.d |
MoHXLPE | 8,124 (253) | 1.0 | 1.0 |
CoPE | 56 (1) | n.a.d | n.a.d |
CoHXLPE | 15,490 (405) | 1.0 (0.8–1.1) | 0. 9 (0.8–1.1) |
CoC | 11,756 (280) | 0.8 (0.6–0.9)b | 0.7 (0.6–0.9)b |
Ox(HXL)PE | 3,578 (87) | 0.9 (0.7–1.2) | 0.9 (0.7–1.1) |
Adjusted for sex, ASA score, diagnosis, previous operation, fixation, surgical approach, and period.
p < 0.05.
p < 0.001.
n.a. = not applicable; hazard ratios and confidence intervals for the MoPE and CoPE articulation were not applicable due to small number of revisions.