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Table 3 The main factors affecting rate of GTR

From: Retrosigmoid-transtentorial approach for petroclival meningiomas: operative technique and clinical outcome

Relative factors

GTR/N

%

χ2

p

Size (mm)

10 ~ 24

4/4

100

8.083

0.018

25 ~ 44

24/28

85.7

  

≥45

18/32

56.3

  

Subtype

Clivus

26/28

92.9

11.201

0.004

Petroclival

8/13

61.5

  

Sphenopetroclival

12/23

52.2

  

Cavernous Sinus

Invasion

8/17

47.1

7.052

0.008

No invasion

38/47

80.9

  

Brainstem Compression

Mild

21/24

87.5

10.584

0.005

Moderate

15/23

65.2

  

Severe

10/17

58.8

  

Consistency

Soft

12/14

85.7

5.260

0.072

moderate

20/25

80.0

  

Tough

14/25

56.0

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