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Table 4 Comparison of Linear Craniometric Parameters of Posterior Cranial Fossa in between genders

From: Morphometric analysis of posterior cranial fossa and foramen magnum and it’s clinical implications in craniovertebral junction malformations: a computed tomography based institutional study in a tertiary care hospital of northern part of India

Linear Craniometric Parameters of Posterior Cranial Fossa

Female (n = 61)

Mean ± SD

Male (n = 59)

Mean ± SD

Total

Mean ± SD

p value

Twinning line (mm){TwL}

95.89 ± 3.3

98.65 ± 2.44

97.25 ± 3.21

< .0001a

McRae’s line (mm)

31.57 ± 1.83

32.97 ± 1.58

32.26 ± 1.84

< .0001a

Clivus length (mm)

40.67 ± 1.49

42.53 ± 2.02

41.59 ± 1.99

< .0001a

IOP-O line (mm)

43.32 ± 1.8

44.5 ± 2.1

43.9 ± 2.03

0.001a

Chamberlain line (mm)

75.42 ± 3.62

75.61 ± 3.74

75.51 ± 3.66

0.785a

Klaus’ index (mm)

43.63 ± 2.05

45.54 ± 2.08

44.57 ± 2.27

< .0001a

Height of posterior fossa (mm){h}

33.57 ± 1.02

35.21 ± 1.38

34.37 ± 1.46

< .0001a

Height of supratentorial region (mm){H}

91.64 ± 2.03

90.83 ± 1.84

91.24 ± 1.97

0.024a

h/TwL

0.35 ± 0.02

0.36 ± 0.02

0.35 ± 0.02

0.028a

Posterior fossa volume (cm3)

161.53 ± 6.82

163.54 ± 8.35

162.52 ± 7.64

0.151a

  1. A significant p value is denoted in bold letters
  2. IOP-O: Internal Occipital Protuberance-Opisthion
  3. aIndependent t test