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Table 1 Patient demographics and baseline characteristics

From: A novel positioner for accurately sitting the acetabular component: a retrospective comparative study

 

Group A (32 hips, 32 patients)

Group B (40 hips, 40 patients)

P value

Demographic characteristics

 Age* (year)

66.8

67.3

0.856*

 Female/male

22/10

28/12

0.909#

 Height* (cm)

168.4 ± 6.5

167.1 ± 8.3

0.471*

 Weight* (kg)

73.5 ± 8.7

71.8 ± 9.4

0.433*

 Body mass index* (kg/m2)

26.4 ± 3.6

27.2 ± 2.5

0.271*

 Osteoarthritis/femoral neck

2/12/18

3/15/22

1.000#

 Fracture/spontaneous osteonecrosis

Operative status

 Estimated blood loss* (ml)

334.8 ± 22.9

322.3 ± 30.7

0.060*

 Harris score

13/19/0/0

15/24/1/0

0.685&

 (Excellent/good/fair/poor)

 Duration of surgery* (min)

125.6 ± 13.7

132.2 ± 20.2

0.119*

  1. *The P values were determined with the t test
  2. #The P values were determined with the chi square test
  3. &The P values were determined with the Mann-Whitney U test