Table 1 Patient demographics.

From: Additional use of anti-rotation U-blade (RC) decreases lag screw sliding and limb length inequality in the treatment of intertrochanteric fractures

 

Standard lag screw

U-blade lag screw

p value

Patients (n)

152

152

 

 Male/female

49/103

50/102

n.s. (0.903)

Age (mean, SD)

80.7 ± 7.6

81.4 ± 7.0

n.s. (0.443)

Side (R/L)

77/75

69/83

n.s. (0.358)

BMI (mean, SD)

22.7 ± 3.2

22.4 ± 3.4

n.s. (0.381)

NSA (mean, SD)

130.3 ± 7.5

129.1 ± 5.3

n.s. (0.115)

BMD (T-score)

− 2.90 ± 0.86

− 2.86 ± 0.93

n.s. (0.754)

ASA class (mean, median)

2.6, 3

2.5, 3

n.s. (0.083)

Preoperative Koval’s Grade (mean, SD)

2.7 ± 1.0

2.9 ± 1.1

n.s. (0.081)

Follow up (month) (mean, SD)

17.1 ± 7.6

14.2 ± 4.1

 < 0.05 (0.000)

AO classification

152

152

 

 A1.1

2

2

 

 A1.2

26

27

 

 A1.3

38

37

 

 A2.2

32

32

 

 A2.3

34

34

 

 A3.1

4

5

 

 A3.2

7

6

 

 A3.3

9

9

n.s. (1.000)

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