Isocentric Navigation for the Training of Percutaneous Endoscopic Transforaminal Discectomy: A Feasibility Study

Table 7

The data we recorded and analyzed in Group B.

Outcomes	L2/3	L3/4	L4/5	L5/S1	P value
Puncture times	1.733±0.799	1.933±0.961	1.867±0.640	2.286±0.994	0.364
Fluoroscopy times	5.867±2.031	6.000±2.035	6.400±1.352	6.857±2.349	0.532
Exposure time (s)	5.867±2.031	6.000±2.035	6.400±1.352	6.786±2.225	0.575
Radiation dose (mSv)	0.106±0.035	0.111±0.035	0.120±0.026	0.126±0.041	0.389