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Table 2 Comparison between type A and C + F

From: Influence of the knot position on the union of the greater trochanter after bipolar hip arthroplasty via the modified Dall approach: a prospective non-randomized study

Parameter

Type A

Type C + F

p value

Number of hips

78

17

 

Age at operation; years old

82.7 ± 7.4

81.7 ± 7.5

0.60

Sex, male:female

28:50

4:13

0.25

Body mass index; kg/m2

19.2 ± 3.6

21.0 ± 3.2

0.047*

Size of the greater trochanteric fragment

 length; mm

33.2 ± 5.8

33.4 ± 4.2

0.89

 width; mm

21.6 ± 4.0

21.3 ± 4.3

0.83

 thickness; mm

8.9 ± 1.8

8.5 ± 2.0

0.36

Type of the stem

  

0.43

 Exeter

9 (11.5%)

1 (5.9%)

 

 SC

69 (88.5%)

16 (94.1%)

 

Surgeon

  

0.25

 A

49 (62.8%)

7 (41.2%)

 

 B

19 (24.4%)

7 (41.2%)

 

 Others

10 (12.8%)

3 (17.6%)

 

Knot position

  

0.013*

 Anterior

34 (43.6%)

13 (76.5%)

 

 Posterior

44 (56.4%)

4 (23.5%)

 
  1. mean ± standard deviation
  2. *means less than 5%