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Table 2 Imaging characteristics of the study patients

From: Multivariate analysis of the relationship between gluteal muscle contracture and coxa valga

 

Left side

Right side

Mean [SD]

n (percent)

Mean [SD]

n (percent)

NSA

135.66 [9.40]

 

135.33 [8.54]

 

 114°-140°

131.30 [5.51]

156 (72.9%)

131.44 [5.63]

157 (73.3%)

  > 140°

147.37 [7.49]

58 (27.1%)

146.06 [5.46]

57 (26.7%)

LCEA

36.99 [6.65]

 

35.22 [7.05]

 

  < 25°

22.72 [1.62]

5 (2.3%)

21.62 [3.29]

6 (2.8%)

 25°-40°

34.01 [3.57]

145 (67.8%)

32.72 [4.08]

158 (73.8%)

  > 40°

44.86 [4.58]

64 (29.9%)

44.74 [5.15]

50 (23.4%)

Tönnis angle

6.11 [5.11]

 

7.44 [5.49]

 

  < 0°

−3.70 [2.46]

26 (12.1%)

−4.11 [3.25]

16 (7.5%)

 0°-10°

5.80 [2.43]

140 (65.4%)

5.71 [2.59]

126 (58.9%)

  > 10°

12.33 [2.23]

48 (22.4%)

13.05 [2.99]

72 (33.6%)

FHCI

0.86 [0.05]

 

0.86 [0.06]

 

  < 0.75

0.74 [0.01]

3 (1.4%)

0.72 [0.03]

11 (5.1%)

  ≥ 0.75

0.86 [0.05]

211 (98.6%)

0.87 [0.05]

203 (94.9%)

acetabular depth

1.41 [0.33]

 

1.33 [0.31]

 

  < 0.9

0.81 [0.09]

13 (6.1%)

0.80 [0.08]

16 (7.5%)

  ≥ 0.9

1.46 [0.30]

201 (93.9%)

1.37 [0.28]

198 (92.5%)

SFP angle

70.07 [7.25]

 

70.34 [7.02]

 

  < 60°

56.64 [3.36]

19 (9.9%)

56.04 [3.66]

16 (7.5%)

 60°-80°

70.01 [5.03]

175 (81.8%)

70.26 [4.68]

179 (83.6%)

  > 80°

82.57 [1.69]

20 (9.3%)

83.09 [1.35]

19 (8.9%)

OF ratio

1.01 [0.25]

 

1.00 [0.26]

 

  < 0.7

0.63 [0.07]

17 (7.9%)

0.59 [0.14]

18 (8.4%)

 0.7–1.4

0.99 [0.17]

179 (83.6%)

0.99 [0.17]

178 (83.2%)

  > 1.4

1.55 [0.15]

18 (8.4%)

1.57 [0.15]

18 (8.4%)

  1. SD standard deviation, NSA Neck–shaft angle, LCEA lateral center edge angle, FHCI femoral head coverage index, SFP angle Sacro-femoral-pubic angle, OF ratio obturator foramen ratio