Robot-assisted technique vs conventional freehand technique in spine surgery: A meta-analysis
Abstract
BACKGROUND: The impact of robot-assisted techniques versus conventional freehand techniques in terms of the accuracy of pedicle screw placement remains conflicting. This meta-analysis was performed to evaluate this relationship.
METHODS: A systematic literature search up to July 2020 was performed and 15 studies were detected with 6041 pedicle screw placements with 2748 of them were using robot-assisted techniques and 3293 were conventional freehand techniques. They reported relationships between robot-assisted techniques and conventional freehand techniques in pedicle screw placement. Odds ratio (OR) or Mean differences (MD) with 95% confidence intervals (CIs) was calculated comparing the robot-assisted techniques to conventional freehand techniques in pedicle screw placement risks using the dichotomous and continuous method with a random or fixed-effect model.
RESULTS: Robot-assisted techniques had a significantly higher screw position grade A in Gertzbein-Robbins classification of the screw placement accuracy (OR, 2.43; 95% CI, 1.66-3.54, P < .001); shorter postoperative stay (MD, -0.67; 95% CI, -1.16 to -0.19, P < .001); lower intraoperative blood loss (MD, -91.64; 95% CI, -152.44 to -30.83, P = .003); fewer intraoperative radiation dose (MD, -23.52; 95% CI, -40.12 to -6.0.93, P = .005); and low proximal facet violations (MD, 0.08; 95% CI, 0.03-0.20, P < .001) compared with conventional freehand techniques. However, no significant difference was found between…
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