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- W2386102603 abstract "Objective:To explore the accuracy and safety of pedicle screw placement under electromagnetic navigation system combined with Stagnara fluoroscopy in idiopathic scoliosis surgery.Method:From April 2006 to December 2008,47 patients with idiopathic scoliosis had a total of 492 pedicle screws placement by the aid of electromagnetic navigation (navigation group);and from June 2004 to April 2006,39 cases of idiopathic scoliosis had a total of 454 pedicle screws placement under fluoroscopic as control(fluoroscopy group).The Carm fluoroscopic images of two groups were both obtained by Stagnara view.The pedicles of all patients were subjected to postoperative CT scan and two-dimensional reconstruction to assess the screw orietation by measuring the perpendicular distance between the pedicle cortical wall and the screw surface.All the pedicle screws′ placement were classified as grade A,B,C and D according to the positions of pedicle screws and grade A and B were added to get the excellent and good rate.Result:In navigation group,the average surgical time was 233.7min(range,165-420min),while 236.1min(range,175-365min) in fluoroscopy group,there was no signifcant difference between two groups (P0.05).The mean blood loss volume was 712.2ml (range,450 - 1650ml) in navigation group,while 794.9ml (range,550-1900ml) in fluoroscopy group,which had statistical signifcances between two groups (P0.05).According the classification of pedicle screw placement,in navigatongroup,476 screws were graded as A,9 as B,5 as C and 2 as D,with the excellent and good rate of 98.5%; while in fluoroscopy group,411 screws were graded as A,14 as B,17 as C 17 and 12 as grade D,with the excellent and good rate of 93.6%,which had signifcant difference between two groups(P0.05).No neurovascu- lar complications occurred in navigation group.However,in fluoroscopy group,2 cases had dural sac perforation and 1 patient had neurological deficit due to misplaced screws.Conclusion:In idiopathic scoliosis surgery, electromagnetic navigation system combined with Stagnara fluoroscopy can decrease the screw misplacement rate and the blood loss volume as well as ensuring safety of the surgery." @default.
- W2386102603 created "2016-06-24" @default.
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- W2386102603 date "2009-01-01" @default.
- W2386102603 modified "2023-09-23" @default.
- W2386102603 title "Use of electromagnetic navigation system combined with Stagnara fluoroscopy in idiopathic scoliosis surgery" @default.
- W2386102603 hasPublicationYear "2009" @default.
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