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Table 3 Micromotion results

From: The effect of abductor muscle and anterior-posterior hip contact load simulation on the in-vitro primary stability of a cementless hip stem

  

Group 1 No abductor

Group 2 Abductor

Component

Fap

Average

95% CI

Average

95% CI

Lateral translation (μm)

0

7

± 5

2*

± 2

 

0.3 BW

10 a

± 4

2*

± 3

 

0.6 BW

16 ab

± 5

2*

± 2

Anterior translation (μm)

0

4

± 5

0

± 4

 

0.3 BW

7

± 9

-4

± 16

 

0.6 BW

25 ab

± 8

-1*

± 19

Distal translation (μm)

0

11

± 6

9

± 3

 

0.3 BW

12

± 6

9*

± 3

 

0.6 BW

16 ab

± 7

8*

± 2

Sagittal plane rotation (×10-3°)

0

0

± 1

3

± 5

 

0.3 BW

5

± 5

3

± 6

 

0.6 BW

11 ab

± 9

1*

± 5

Frontal plane rotation (×10-3°)

0

14

± 6

10

± 12

 

0.3 BW

20

± 6

12

± 16

 

0.6 BW

35 ab

± 11

10*

± 12

Transverse plane rotation (×10-3°)

0

-0

± 2

-1

± 2

 

0.3 BW

-6

± 14

9

± 16

 

0.6 BW

-61 ab

± 16

14*

± 37

  1. * p < 0.05 compared to other group at same Fap level
  2. a p < 0.05 compared to same group at Fap = 0 BW
  3. b p < 0.05 compared to same group at Fap = 0.3 BW
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Journal of Orthopaedic Surgery and Research

ISSN: 1749-799X