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 4

Surgical morbidity.

Surgical morbidity	CBT-PLIF	PS-PLIF	value
Radiation DAP (mGy/cm2)	1960,15; (SD 443,64)	2024,15; (SD 561,24)	0,6913
Surgical time (minutes)	157,45; (SD 21,74)	169,65; (SD 23,87)	0,0993
Length of stay (days)	2,9 (SD 1,37)	3,8 (SD 1,32)	0,0413
Blood loss (cc)	276,5; (SD 67,92)	330,5; (SD 90,41)	0,0392