Cortical Bone Trajectory Screws in Posterior Lumbar Interbody Fusion: Minimally Invasive Surgery for Maximal Muscle Sparing—A Prospective Comparative Study with the Traditional Open Technique

Table 3

Comparison between clinical outcomes.

Clinical scores	CBT-PLIF	PS-PLIF	value
VAS pre-Vas post; (mean)	3,90 (SD 2,25)	2,70 (SD 1,34)	0,0471
ODI pre-ODI post; (mean)	31% (SD 25%)	18% (SD 11%)	0,04
EQ pre-EQ post; (mean)	6,15 (SD 4,85)	3,65 (SD 1,69)	0,358
VAS pre-Vas 12 mo; (mean)	6,65 (SD 1,84)	5,4 (SD 1,23)	0,0160
ODI pre-ODI 12 mo; (mean)	52% (SD 26%)	34% (SD 16%)	0,0150
EQ pre-EQ 12 mo; (mean)	12,85 (SD 6,08)	9,65 (SD 3,41)	0,0470