Evaluating the outcome of classic laminectomy surgery alone versus laminectomy with fixation surgery in patients with lumbar canal stenosis regarding improvement of pain and function

Egyptian Journal of Neurosurgery

Table 5 Pain NRS and ODI scoring of studied patients at 3- and 6-month PO

Parameter				Group A	Group B	P value
Parameter				(n = 92)	(n = 92)	P value
NRS score	Score	Preoperative		6.6 ± 1.2	6.5 ± 1.3	0.936
		At 3-month follow-up		4.2 ± 1.9^a	3.4 ± 1.6^a	0.0042
		At 6-month follow-up		3.4 ± 1^ab	3 ± 1.3^a	0.0048
	Percentage of decrease	Frequency	≥ 50%	54 (58.7%)	69 (75%)	0.0188
		Frequency	< 50%	38 (41.3%)	23 (25%)	0.0188
		Mean percentage		47.4 ± 13.1	54.3 ± 16.6	0.002
ODI score	Preoperative			32 ± 5	30.8 ± 4.6	0.063
	At end of follow-up			18.3 ± 3.9	15.9 ± 3	0.0001
	Percentage of decrease	Frequency	≥ 50%	29 (31.5%)	48 (52.2%)	0.0045
		Frequency	< 50%	63 (68.5%)	44 (47.8%)	0.0045
		Mean percentage		41.7 ± 13.6	47.2 ± 12.5	0.0019

This table shows that the success rate presented as the frequency of patients developed ≥ 50% reduction of both pain and ODI scores were significantly higher in group B versus group A