Table 2. Pre- and postoperative clinical assessments.

	Preoperative evaluation					Postoperative evaluation
Clinical characteristics	n	%	Mean±SD	Median	Min-Max	n	%	Mean±SD	Median	Min-Max	p
Motor strength			0.27±0.91	0,00	0.00-4.00			2.51±2.01	2,50	0.00-5.00	<0.001*
Muscle strength
0/5 motor strength	30	90,9	11				33,3
2/5 motor strength	1	3,03	5				15,2
3/5 motor strength	1	3,03	5				15,2
4/5 motor strength	1	3,03	3				9,1
5/5 motor strength	-	-	9				27,3
Sphincter control loss	27	81,8	22				66,7	0.06**
Sensory deficit	31	93,9	29				87,9	0.25**
SD: Standard deviation; Min: Minimum; Max: Maximum; * Wilcoxon analyses; ** McNemar’s test.