Table 3 Characteristics related to GTR.

From: The expanded endoscopic endonasal approach for treatment of tuberculum sellae meningiomas in a series of 40 consecutive cases

Characteristic

Number of patients

Number of GTR achieved (%)

P

Maximum diameter (mm)

  

1.0

 ≤ 24.1

25

24 (96.0%)

 

 > 23

15

14 (93.3%)

 

Invasion of optic canal

  

1.0

Yes

6

6 (100%)

 

No

34

32 (94.1%)

 

Arachnoid plane

  

0.281

Present

34

33 (97.1%)

 

Absent

6

5 (83.3%)

 

Adhesion with important vessels

  

0.001

Present

2

0 (0%)

 

Absent

38

38 (100%)