Table 2.
Radiological variables in the +IPI and −IPI group
| +IPI group (n = 15) | −IPI group (n = 191) | P value | |
|---|---|---|---|
| Number of patients | 15 | 181 | |
| Dorr classification, no. (%)* | < 0.001a | ||
| Type A | 2 (13.3) | 54 (28.3) | |
| Type B | 4 (26.7) | 109 (57.1) | |
| Type C | 9 (60) | 28 (14.6) | |
| Stem alignment (°) | 0.065 | ||
| Mean (SD) | 1.2 (1.9) | 0.4 (1.6) | |
| Median (range) | 1 (− 1–3) | 0 (− 2–3) | |
| Stem anteversion (°)* | < 0.001 | ||
| Mean (SD) | 19.1 (8.9) | 15.2 (2.9) | |
| Median (range) | 16 (10–39) | 15 (9–25) | |
| CPL (mm)* | < 0.001 | ||
| Mean (SD) | 2.6 (2.3) | − 0.5 (1.1) | |
| Median (range) | 3 (− 2–5) | 0 (-2-1) |
CPL collar protrusion length, SD standard deviation
*Difference of data statistically significant (P < 0.05)
aFisher exact test