Table 1.

Demographic and clinical data.

Patient id	Gender	Age (years)	Weight (Kg)	Height (cm)	Diagnosis
1	F	66	57	160	Spinal disc herniation L4, L5
2	F	53	57	160	Spinal disc herniation L4, L5
3	M	49	80	175	Spinal disc herniation L5, S1
4	M	67	70	168	Spinal disc herniation L3, L4
5	F	56	59	160	Spinal disc herniation L5, S1
6	M	62	71	169	Spinal stenosis L3, L4
7	M	79	95	180	Spinal stenosis L2, L3
8	F	74	93	175	Spinal stenosis L3, L4
9	F	45	49	160	Spinal stenosis L5, S1
10	M	30	78	170	Spinal disc herniation L4, L5
11	M	76	91	169	Spinal stenosis L3-L5