Skip to main content

Table 2 Comparison of the TAD between the two groups

From: The small screw-apex distance is potentially associated with femoral head osteonecrosis in adults with femoral neck fractures treated by closed reduction and percutaneous 3 parallel cannulated screws

 

AP view

 

Lateral view

 

TAD

 

Items

ONFH group

(n = 13)

Normal group

(n = 87)

P value

ONFH group

(n = 13)

Normal group

(n = 87)

P value

ONFH group

(n = 13)

Normal group

(n = 87)

P value

1st screw(mm)

21.35 ± 5.46

(14.28–29.13)

15.95 ± 4.52

(5.02–28.42)

< 0.001

13.13 ± 5.80

(6.60-21.79)

14.90 ± 4.73

(1.88–28.16)

0.22

34.48 ± 6.36

(23.07–43.04)

30.85 ± 7.36

(13.51–53.29)

0.10

1st + 2nd screw(mm)

37.51 ± 6.59

(25.66–51.38)

31.70 ± 6.42

(22.34–55.48)

< 0.01

31.06 ± 11.05

(19.40-54.54)

34.17 ± 9.18

(3.96–61.51)

0.27

68.57 ± 14.00

(47.93–94.40)

65.87 ± 13.01

(33.71-106.14)

0.49

1st + 2nd + 3rd screw(mm)

56.99 ± 9.00

(43.34–70.90)

52.13 ± 9.86

(32.69–87.20)

0.10

52.84 ± 16.76

(34.63–89.35)

58.36 ± 14.19

(6.37–96.91)

0.20

109.81 ± 20.29

(80.00-160.25)

110.49 ± 20.73

(60.26-164.33)

0.91

  1. ONFH, osteonecrosis of the femoral head; TAD, tip-apex distance; AP, anteroposterior
  2. Data are presented as the mean ± standard deviation(range) or number of patients. Differences are considered significant at p < 0.05
Back to article page

BMC Musculoskeletal Disorders

ISSN: 1471-2474

Contact us