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Table 1 Patient demographics and mean anteversion for each cohort

From: Digital protractor as an intraoperative guide to cup anteversion in total hip arthroplasty

 

Digital protractor group(n = 86)

Control group

(n = 86)

P-value

Age

71.8 ± 9.4

72.3 ± 8.5

0.374a

Gender(male/female)

30/56

25/61

0.532b

Body mass index(BMI)

27.34 ± 3.25

26.52 ± 2.91

0.279a

Operation side(left/right)

48/38

45/41

0.532b

Prosthetic types

  

0.683b

 Cement

23

22

 

 Cemetless

63

64

 

Radiographic anteversion(°) preoperation

13.8 ± 1.1

14.1 ± 1.4

0.244a

Radiographic anteversion(°) postoperation

15.5 ± 1.6

21.4 ± 2.9

0.003a*

Anteversion bias(°)

1.59 ± 0.98

6.63 ± 2.28

0.0012a*

  1. aStudent’s t-test
  2. bChi-squared test
  3. *Statistically significant