[Retracted] Outcome of Percutaneous Transforaminal Endoscopic Lumbar Decompression for Multisegment Lumbar Spinal Stenosis and the Effect on VAS Scores

Table 3

Comparison of intraoperative and postoperative complications between the two groups.

Complications	PTED group (n = 70)	TOS group (n = 56)	χ ^2
Intraoperative dural tear	3 (4.29)	3 (5.36)	0.079	0.779
Transient nerve injury	2 (2.86)	1 (1.79)	0.154	0.695
Incisional infection	0 (0.00)	3 (5.36)	3.842	0.050
Bone fibrous hyperplasia	0 (0.00)	2 (3.57)	2.540	0.111
Deep vein embolism of lower extremity	0 (0.00)	2 (3.57)	2.540	0.111
Local swelling	1 (1.43)	4 (7.14)	2.666	0.103
Refurbishment	3 (4.29)	0 (0.00)	2.459	0.117
Others	2 (2.86)	3 (5.36)	0.510	0.475
Total	11 (15.71)	18 (32.14)	4.739	0.029