Table 1
Patient demographics and radiographic measurements for UHMWPE and XLPE study groups.
| UHMWPE group (mean + SD) | HCLPE group (mean ± SD) | p-value | |
|---|---|---|---|
| N | 80 | 88 | – |
| Age | 64.5 + 8.67 | 58.0 + 10.40 | 3 × 10−6a |
| Gender | 47:34 | 37:49 | 0.06 |
| Follow-up (years) | 10.0 + 1.23 | 9.9 + 1.10 | 0.373 |
| Inclination | 41.9 + 6.22 | 42.56 + 6.72 | 0.322 |
| Ante version | 20.5 + 5.57 | 21.9 + 7.11 | 0.267 |
| Annual wear rate (mm/year) | 0.21 ± 0.12 | 0.05 + 0.03 | 1 × 10−19a |
| Acetabular osteoly | 17 of 80 | 0 of 88 | 7.4 × 10−7a |
| Zone 1 | 2 | – | – |
| Zone 2 | 6 | – | – |
| Zone 3 | 17 | – | – |
| Femoral osteolysis | 37 of 80 | 0 of 88 | 9.4 × 10−15a |
| Zone 1 | 21 | – | – |
| Zone 6 | 2 | – | – |
| Zone7 | 34 | – | – |
| Other | 5 | – | – |
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