Table 1.

characteristics of 40 patients

Patient no.	Sex	Age	Diagnosis	Sample level	Pfirrmann grade
1	male	70	intervertebral disc herniation	L4-L5	5
2	male	52	spondylolisthesis	L4-L5	5
3	female	46	intervertebral disc herniation	L5-S1	4
4	female	73	intervertebral disc herniation	L4-L5	4
5	male	21	intervertebral disc herniation	L5-S1	4
6	female	72	spinal stenosis	L4-L5	4
7	male	68	intervertebral disc herniation	L4-L5	4
8	male	67	intervertebral disc herniation	L4-L5	4
9	female	74	spinal stenosis	L4-L5	5
10	male	59	spinal stenosis	L3-L4	4
11	female	71	intervertebral disc herniation	L4-L5	5
12	male	33	intervertebral disc herniation	L5-S1	4
13	male	62	spinal stenosis	L5-S1	3
14	male	49	spinal stenosis	L4-L5	4
15	male	29	intervertebral disc herniation	L5-S1	4
16	female	56	spinal stenosis	L5-S1	4
17	female	42	intervertebral disc herniation	L5-S1	4
18	female	18	lumbar fracture	L1	2
19	male	23	intervertebral disc herniation	L5-S1	4
20	male	25	intervertebral disc herniation	L5-S1	3
21	male	28	lumbar fracture	L1	2
22	male	44	intervertebral disc herniation	L4-L5	4
23	male	50	intervertebral disc herniation	L4-L5	5
24	female	57	spinal stenosis	L5-S1	5
25	female	58	intervertebral disc herniation	L4-L5	3
26	male	33	intervertebral disc herniation	L5-S1	5
27	female	34	intervertebral disc herniation	L4-L5	4
28	male	43	spinal stenosis	L4-L5	3
29	male	40	ankylosing spondylitis	L3-L4	3
30	female	28	lumbar fracture	L1	2
31	male	23	lumbar fracture	L1	2
32	female	57	spinal stenosis	L4-L5	4
33	female	73	spinal stenosis	L4-L5	4
34	male	67	intervertebral disc herniation	L4-L5	5
35	male	59	intervertebral disc herniation	L3-L4	4
36	male	62	spinal stenosis	L4-L5	3
37	female	18	spondylolisthesis	L5-S1	2
38	male	41	lumbar fracture	L3	1
39	female	47	intervertebral disc herniation	L5-S1	3
40	female	13	spondylolisthesis	L5-S1	2