Table 2.

Clinical and radiological findings

Patients	Age	Back Pain	Leg Pain	sensory	reflex	motor	X-Rays	CT/MRI
Group 1
1	50	5	1	nl	nl	nl	nl	nl
2	31	4	1	nl	nl	nl	nl	nl
3	47	3	---	nl	nl	nl	nl	nl
4	40	5	5	nl	nl	nl	nl	nl
5	44	5	0,5	nl	nl	nl	deg L5-S1	nl
6	25	3	---	nl	nl	nl	isth L5-S1	nl
7	27	3	---	nl	nl	nl	isth L5-S1	nl
8	48	2	1	nl	nl	nl	isth L5-S1	nl
9	27	3	---	nl	nl	nl	isth L5-S1	nl
10	62	20	0,5	nl	nl	nl	deg L4-L5	nl
11	48	1	---	nl	nl	nl	isth L5-S1	nl
12	49	7	---	nl	nl	nl	isth L5-S1	nl
13	32	2	1	nl	nl	nl	isth L5-S1	nl
14	44	1	---	nl	nl	nl	isth L5-S1	nl
15	45	2	---	nl	nl	nl	isth L5-S1	nl
Group 2
16	56	6	3	nl	w P, w rA	nl	deg L4-L5	nl
17	60	2	2	nl	w rA	nl	deg L4-L5	nl
18	43	10	1	r L5S1	w lA	nl	isth L5-S1	nl
19	25	1	0,5	r L4L5	a A	nl	isth L5-S1	nl
20	44	10	0,6	r L3L4	w P, w A	nl	deg L5-S1	nl
21	47	2	1	nl	w rA	nl	deg L4-L5	nl
22	46	3	3	nl	w A	nl	nl	nl
23	47	2	2	nl	w P, a A	nl	nl	nl
24	54	20	10	nl	a A	nl	deg L4-L5	nl
25	51	10	5	nl	w rA	nl	deg L4-L5	nl
26	45	10	0,5	nl	w lP, w A	nl	deg L4-L5	nl

Age, back and leg pain expressed in years. Clinical signs: sensory abnormalities listed by root level; reflex abnormalities defined by weak or absent reflex; side noted only if lesion is unilateral.X-ray and CT/MRI findings at lumbosacral level: listhesis indicated in plain radiographs.Abbreviations: nl = normal; r = right; l = left; P = patellar; A = Achilles; w = weak; a = absent; deg = degenerative; isth = isthmic; --- = absent