Table 4 Entry Point of the posterior column screw. Entry point of the retrograde posterior column screw in relation to the transition of Ramus pubis inferior and tuber ischiadicum and medial margin of tuber ischiadicum in examined Europeans with uninjured pelvis
Distance to the transition of Ramus pubis inferior and tuber ischiadicum [mm] | Distance to medial margin of tuber ischiadicum [mm] | |||||
|---|---|---|---|---|---|---|
Right | Left | Both sides | Right | Left | Both sides | |
Men: | ||||||
Number | 65 | 65 | 130 | 65 | 65 | 130 |
Mean ± SD | 12.6 ± 2.0 | 12.8 ± 2.0 | 12.7 ± 2.0 | 12.3 ± 1.8 | 11.9 ± 2.0 | 12.1 ± 1.9 |
Median | 12.7 | 12.9 | 12.8 | 12.2 | 11.9 | 12.0 |
Range | 6.6–18.1 | 8.0–17.9 | 6.6–18.1 | 8.3–16.0 | 8.1–18.2 | 8.1–18.2 |
Women: | ||||||
Number | 65 | 65 | 130 | 65 | 65 | 130 |
Mean ± SD | 12.5 ± 1.6 | 12.3 ± 1.6 | 12.4 ± 1.6 | 10.8 ± 1.6 | 10.8 ± 1.9 | 10.8 ± 1.8 |
Median | 12.7 | 12.4 | 12.5 | 10.5 | 10.7 | 10.6 |
Range | 8.0–16.0 | 8.0–17.0 | 8.0–17.0 | 7.1–15.9 | 7.3–16.0 | 7.1–16.0 |