The Egyptian Journal of Neurology, Psychiatry and Neurosurgery

Table 2 Comparison between the 2 study groups as regard clinical data

From: Minimally invasive surgical management of symptomatic lumbar disc herniation: can the endoscope replace the microscope?

	MD		ED		p
	n	%	n	%	p
Back pain
No	0	0	2	20	0.48**
Yes	20	100.0	18	90	0.48**
Sciatica
Left	16	80.0	15	75.0	0.614*
Right	4	20.0	5	25.0	0.614*
Straight leg raising (SLR)
Left	16	80.0	15	75.0	0.614*
Right	4	20.0	5	25.0	0.614*
Sensory affection
No	5	25.0	6	30.0	0.723*
Yes	15	75.0	14	70.0	0.723*
Reflexes
No	17	85.0	9	45	0.008*
Yes	3	15.0	11	55	0.008*
Affected level
L3–4	4	20.0	3	15	0.31*
L4–5	10	50.0	12	60.0
L5–S1	6	30.0	5	25
Site
Posterolateral	12	60.0	4	20	0.006**
Foraminal	5	25.0	3	15
Lateral	3	15.0	13	65

MD microscopic discectomy, ED endoscopic discectomy, N number
*Chi square test
**Fisher exact test

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