Table 4

Summary of the findings of studies that assessed postoperative and post-ICU admission outcomes.

Study	No. of Patients	Procedure	Outcome
Yue et al, 201830	442	C2 fracture repair	ICU admission was more predictive of lung infection (P = 0.001) and overall complications (P = 0.005) than floor admission.
Cloney et al, 202231	1147	Anterior lumbar fusion	The need for intensive care management was significantly correlated with the occurrence of vascular thromboembolic events (P = 0.005).
Cho et al, 202032	3933	Degenerative lumbar disease surgery	ICU admission was found to be a risk factor for hospital readmission within 1 month of discharge (P < 0.001) when comparing to the subset of patients who did not experience readmission.
Lim et al, 200633	-	-	ICU admission increased the likelihood of infection in patients following traumatic spine injury surgery.
Yousef et al, 201834	76	Neuromuscular scoliosis correction surgery	ICU length of stay (P = 0.001) and operative time (P = 0.02) were risk factors for postoperative fever.
Yearly et al, 202235	112	Spine deformity surgery	A stay in the ICU greater than 1 day was a risk factor for the occurrence of a major complication (P < 0.05).
Cloney et al, 201911	6869	Spinal fusion	Patients who underwent spine surgery and were admitted to the ICU had a rate of venous thromboembolic events of 10.2 % while all spine surgery patients had a rate of thromboembolic events of 2.5%.
Harris et al, 20019	109	Anterior or posterior cervical spine surgery	Heart disease and lung failure were the leading causes of mortality in the ICU after spine surgery.