Table 2.

Resection method.

Resection method	Location of dural attachment to spinal meningioma				Recurrence	Total
	Dorsal	Dorsolateral	Ventrolateral	Ventral
Simpson 1	2	2	1	0	0	5
Simpson 2	0	1	1	1	0	3
Simpson 3	1	2	7	0	2	10
Simpson 4	0	0	0	1	1	1
Tumor resection with inner layer of dura	2	0	8	0	0	10

Values indicate number of patients.