Table 3.

Summary of the literature review

Patient data	Values
Total number of patients	26,207
Mean age	59.8
Number of segments fused	9.3
Mean operation time (min)	410.76
Mean blood loss (mL)	1592.72
Mean follow-up time (months)	28.85
Total number of complications (%)	9138/26,207 (34.8)
Total number of revision surgery* (%)	2334/13,067 (17.8)

*We included the series with 1 year or more follow-up times