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Table 1 Details on measured and chosen distal screw length [mm]

From: The influence of distal screw length on the primary stability of volar plate osteosynthesis—a biomechanical study

Number of screwa

Parameter

Group A

100 %

Group B

75 %

Significanceb

1

Measured

20.3 ± 2.6

19.7 ± 2.7

ns

Chosen

19.1 ± 2.7

15.1 ± 2.0

0.003

Percent total [%]

93.9 ± 3.7

76.7 ± 2.8

2

Measured

23.6 ± 1.5

24.1 ± 1.8

ns

Chosen

22.7 ± 1.4

18.0 ± 1.4

<0.001

Percent total [%]

96.0 ± 3.0

74.8 ± 2.3

3

Measured

23.9 ± 2.0

23.6 ± 2.4

ns

Chosen

23.3 ± 2.4

17.8 ± 1.9

<0.001

Percent total [%]

97.3 ± 2.6

75.3 ± 1.9

4

Measured

23.3 ± 2.0

23.1 ± 1.7

ns

Chosen

22.4 ± 2.2

17.1 ± 1.1

<0.001

Percent total [%]

96.1 ± 3.0

74.1 ± 2.0

5

Measured

21.3 ± 2.7

21.3 ± 2.0

ns

Chosen

20.2 ± 2.3

16.0 ± 1.7

<0.001

Percent total [%]

94.9 ± 3.0

75.1 ± 2.8

8

Measured

23.1 ± 1.8

23.3 ± 2.2

ns

Chosen

22.2 ± 2.3

17.6 ± 1.7

<0.001

Percent total [%]

96.0 ± 4.1

75.2 ± 2.2

  1. Values given in millimetre if not stated differently
  2. ns not significant
  3. aAccording to Fig. 1C
  4. bMann-Whitney U test