3D-printed drill guide template, a promising tool to improve pedicle screw placement accuracy in spinal deformity surgery: A systematic review and meta-analysis

This study aimed to compare the pedicle screw placement accuracy and surgical outcomes between 3D-printed (3DP) drill guide template technique freehand in spinal deformity surgery. A comprehensive systematic literature search of databases (PubMed, Embase, Cochrane Library, Web Science) was conducted. The meta-analysis compared other important two techniques. total seven studies were included meta-analysis, comprising 87 patients with 1384 screws placed by 3DP templates 88 1392 technique. results revealed that significantly more accurate than place had a higher rate excellently (OR 2.22, P < 0.001) qualifiedly 3.66, 0.001), lower poorly 0.23, 0.001). mean time per (WMD–1.99, 0.05), (WMD–27.86, blood loss (WMD–104.58, 0.05) reduced group group. Moreover, there no significant statistical difference techniques terms operation correction main bend curve. demonstrated promising tool for assisting surgery deserved further promotion.