Comparison between microendoscopic laminectomy and open posterior decompression surgery for single-level lumbar spinal stenosis: a multicenter retrospective cohort study

Table 3 Comparison of patient-reported outcomes between microendoscopic laminectomy and open groups

	MEL Group	Open Group	p
NRS (Lower back pain)
Preoperative	5.92 ± 2.6	5.96 ± 2.8	0.21
Postoperative	2.43 ± 1.5	2.67 ± 1.2	0.72
NRS (Leg pain)
Preoperative	5.80 ± 2.7	5.72 ± 3.4	0.76
Postoperative	2.52 ± 1.6	2.36 ± 2.4	0.98
ODI
Preoperative	20.8 ± 8.2	20.2 ± 9.7	0.80
Postoperative	12.0 ± 5.8	11.8 ± 6.2	0.34
EQ-5D
Preoperative	0.58 ± 0.12	0.55 ± 0.18	0.78
Postoperative	0.74 ± 0.17	0.73 ± 0.12	0.98
Satisfaction with the operation	74%	53%	0.02

MEL, microendoscopic laminectomy, NRS, numerical rating scale, ODI, Oswestry Disability Index, EQ-5D, EuroQol 5 Dimension

ISSN: 1471-2474