Table 3.

Surgical data comparison between FA group (n = 101) and CTNav group (n = 91)

	FA group (n = 101)	CTNav group (n = 91)	p
Total number of screws	502	450	–
Screws per patient	4 (4–8)	4 (4—8)	0.830
TLIF (yes:no)	40:61	50:41	0.043
Operative time (min)	145 (55–320)	155 (90–290)	0.060
Time per single screw (min)	5.7 (2.5–17.7)	6.3 (3.1–14.7)	0.154
Time per screw—1 level (min)	6.0 (2.5–17.7)	7.0 (4.0–14.7)	0.032
Time per screw—2 levels (min)	5.5 (3.2–10.2)	5.3 (4.0–7.7)	0.973
Time per screw—3 levels (min)	5.6 (3.0–7.6)	3.9 (3.1–6.4)	0.224
Complications (%)	7 (6.9)	5 (5.5)	0.771

Statistically significant differences between the two study groups (p < 0.05) are highlighted in bold