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- W2100461424 abstract "Background: Pedicle screw placement usingfree hand technique has high incidence of pedicleperforation. The said risk can be reducedwith intra-operative fluoroscopy or navigation,which have some disadvantages. A promisingprinciple for solving most of the issues is therapid prototyping technology. By this techniqueit is possible to manufacture patient specificdrill guide templates that enable optimal pediclescrew placement. In the last decade, many studieshave featured relatively successful implantationsof pedicle screws through the use of drillguide templates, though mostly on cadavers. Weperformed a similar clinical study involving themanufacture of templates for the lumbar andsacral regions that enable simultaneous multiple-level screw implanting.Methods: A randomized clinical trial was performedin 15 patients. In the lumbar and sacralspine 30 screws were implanted using drill guidetemplate and 36 screws using free hand techniqueunder fluoroscopy supervision. PreoperativeCT-scans were taken for drill guide templatedesign and manufacture using selective laser sinteringmethod. According to postoperative CTscananalysis, pedicle perforation incidence wasestimated.Results: The incidence of cortex perforation wassignificantly reduced in the drill guide templategroup.Conclusions: Drill guide templates have turnedout to be a reliable solution that importantly reducespedicle perforation incidence and complicationsrelated to it. However, there are shortcomings:a relatively lengthy manufacturingprocess, possible manufacturing faults and incorrectpositioning during the operation. Owingto mentioned disadvantages, templates have notreplaced free hand and navigation technique yet,but could represent a useful tool in some selectedcases." @default.
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- W2100461424 date "2013-06-01" @default.
- W2100461424 modified "2023-09-28" @default.
- W2100461424 title "Use of rapid prototyping drill guide templatefor pedicle screw placement" @default.
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