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Table 3 Mean and standard deviation (SD) values of relative micro-motion and vertical displacement

From: Biomechanical efficacy of AP, PA lag screws and posterior plating for fixation of posterior malleolar fractures: a three dimensional finite element study

Variables

Groups

Magnitude of applied force

Mean

SD

P-value*

500 N

1000 N

1500 N

Relative micro-motion (RM)

AP lag (1)

0.23

0.58

0.99

0.60

0.38

 

PA lag (2)

0.16

0.36

0.67

0.39

0.25

 

Post. Plate (3)

0.01

0.03

0.05

0.03

0.02

0.039 (3–1)

Vertical displacement(VD)

AP lag

0.57

1.40

1.93

1.30

0.68

 

PA lag

0.52

1.14

1.85

1.19

0.69

 

Post. Plate

0.37

0.86

1.32

0.88

0.52

 
  1. *P-value is significant at < 0.05