Table 3 Different surgical approach choice based on tumor type and tumor removal extent (n = 168).

From: Treatment Strategy for Petroclival Meningiomas Based on a Proposed Classification in a Study of 168 Cases

Tumor type

n (%)

GTR (%)

Surgical approach* (%)

RSA

PCA

EPTA

PTCA

STTA

BRSA

RTTA

RISA

Clivus (CV)

17 (10.1)

13 (76.5)

17 (100)

—

—

—

—

—

 

Petroclival (PC)

68 (40.5)

51 (75.0)

53 (77.9)

14 (20.6)

—

1 (1.5)

—

—

 

Petroclivosphenoidal (PC-S)

58 (34.5)

39 (67.2)

—

24 (41.4)

16 (27.6)

6 (10.3)

—

—

12 (20.7)

Sphenopetroclival (S-PC)

S-PC I

14 (8.4)

16 (64.0)

—

—

2 (14.3)

—

—

12 (85.7)

 

S-PC II

11 (6.5)

—

—

2 (18.2)

—

9 (81.8)

—

—

Total

168

119 (70.8)

128

7

9

12

12

  1. *RAS retrosigmoid approach, BRSA basic retrosigmoid approach, RTTA retrosigmoid trantentorial approach, RISA retrosigmoid intradural suprameatal approach, PCA presigmoid combined supra-infratentorial approach, EPTA extended pterional transtentorial approach, PTCA pretemporal trancavernous anterior transpetrosal approach, STTA subtemporal transtentorial transpetrosal approach.
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