Table I.

Clinical findings of group II

Age and sex	Symptoms and sign.	Diagnostic procedure finding	Operation	Follow-up period	Pre-op. ODI (%)	Post-op. ODI (%)
17, F	LBP and left sciatica for 2 years Bilaterally SLR test (+), left hypoestesia of L5 dermatoma	MRI: right L4-L5 HNP EMG: left L5 radicular compression	Right L4 hemipartial laminectomy and L4-L5 discectomy	34 months	56	18
40, M	LBP for 3 years, left sciatica for last 9 months, left SLR (+), hypoestesia of left L5 and S1 dermatomas	MRI: right L4-L5 HNP EMG: left L5 radicular compression	Right L4 hemipartial laminectomy and L4-L5 discectomy	9 years	68	12
45, F	LBP for 5 years, left sciatica for 2 years, bilaterally SLR (+), hypoestesia of left S1 dermatoma	MRI: right L5-S1 HNP EMG: left S1 radicular compression	Right L5 hemipartial laminectomy and L5-S1 discectomy	37 months	44	20
44, F	LBP for 4 years and left sciatica for 3 years, left SLR (+) hypoestesia of left L5 dermatoma	MRI: right L4-L5 HNP, L5-S1 central HNP EMG: L5 radicular compression	Right L4 and L5 hemipartial laminectomies, L4-L5 and L5-S1 discectomies	6 years	76	24
54, F	LBP and left sciatica for 1 year, left SLR (+)	MRI: right L3-L4 HNP EMG: left L4 radicular compression	Right L3 hemipartial laminectomy and L3-L4 discectomy	5 years	48	16

LBP – Lumbar back pain, SLR – Straight leg raising, HNP – Herniated nucleus pulposus, ODI – Oswestry Disability Index