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Table 1 Lengths of four paths of screw passage and bone plate thicknesses of two narrow places

From: Radiographic study of iliac screw passages

Path

Total length of screw passage ( x ¯ ± s, mm, n = 100)

Thickness of the first narrow place ( x ¯ ± s, mm, n = 100)

Thickness of the second narrow place ( x ¯ ± s, mm, n = 100)

A

140.6 ± 5.9

17.3 ± 3.1

23.6 ± 2.6

B

138.1 ± 6.4*

14.3 ± 2.4**

12.8 ± 3.5***

C

118.9 ± 7.3

17.2 ± 2.7▲▲

22.8 ± 4.6▲▲▲

D

139.1 ± 5.6

15.7 ± 2.8

20.5 ± 2.8

  1. Compared with path A, *t = 2.87, P < 0.01; **t = 7.65, P < 0.001; *** t = 24.77, P < 0.001; t = 23.12, P < 0.001; ▲▲t = 0.24, P > 0.05; ▲▲▲t = 1.51, P > 0.05; t = 1.84, P > 0.05; t = 3.83, P < 0.001; t = 8.11, P < 0.001.