Table 3.

Demographic data and distribution of the foraminal stenosis cases.

Foraminal Stenosis Type	Patients, n	Mean Age, y	Gender
			Women	Men
Stable type I	12	66.2	8	4
Stable type II	10	53.9	7	3
Stable type III	8	69.4	4	4
Stable type IV	6	37.0	2	4
Unstable type I	45	51.7	18	27
Unstable type II	15	61.4	9	6
Unstable type III	9	55.8	6	3
Unstable type IV	10	59.4	5	5
Total	115	56.1	59	56