Table 1.

Demographic data and clinical features of patients in Group 1 (lumbar disc herniation) and Group 2 (lumbar spinal stenosis)

	Group 1	Group 2	P
Male/female	12/8	4/16	0.024
Age	48.4±13.36	62.5±10.16	0.001
Duration of surgery	88.5±48.39	143.5±62.3	0.003
Level of surgery, n (%)
Single	17	9	0.02
2 levels	3	10	0.043
3 levels	0	1	0.3
Bleeding volume	87.75±80.71	186.5±155.64	0.01
Hospitalization	1.2±0.61	1.5±1.05	0.278
Complication, n (%)
Dura laceration	1 (5)	6 (30)	0.037
Excessive bleeding	0	2 (10)	0.487
Other	0	1 (5)	1
Preoperative VAS leg	7.1±2.59	6.7±2.63	0.631
Preoperative VAS back	5.4±2.39	5.7±2.55	0.704
Oswestry score	63.10±21.9	56.9±20.67	0.363
JOA score	10.8±5.26	13.15±4.43	0.135
Kyphotic/scoliotic gate, n (%)	11 (55)	4 (20)	0.05

VAS - Visual Analog Scale; JOA - Japanese Orthopedic Association