Improved 2D computer-assisted fluoroscopic navigation of imitation 3D vertebra image to guide pedicle screw in lumbar disease
10.3760/cma.j.issn.1673-4904.2010.05.004
- VernacularTitle:改良二维导航模拟椎体三维影像引导椎弓根钉内固定在腰椎疾患中的应用
- Author:
Enzhi LIU
;
Dongming GUO
;
Weishan CAI
- Publication Type:Journal Article
- Keywords:
Surgery;
computer-assisted;
Spondylolisthesis;
Internal fixators;
Pedicle screws
- From:
Chinese Journal of Postgraduates of Medicine
2010;33(5):10-12
- CountryChina
- Language:Chinese
-
Abstract:
Objective To explore clinical outcomes of using improved 2D computer-assisted fluoroscopic navigation of inu'tation 3D vertebra image to guide the pedicle screws in lumbar disease. Methods The anterio posterior, lateral and oblique radiographic materials were got in 43 lumbar disease patients performed neck of vertebra internal fixation, and used the method of improved computer-assisted fluoroscopic navigation to imitate anterio posterior, lateral spinal and axial pedicle virtual image to guide the pedicle screws implantation. Results One hundred and eighty-eight lumbar pedicle screws were implanted, deviation mean position 1.5 mm and mean angle deviation 0.8° in match navigation virtual path with real pedicle screws image. Postoperative CT showed all pedicle screws contained within the pedich, without invasion to lateral and inner bone cortical of the pediele. Deviation mean 1.0° by measured pedicle screws with longitudinal axis vertebra compared with preoperational predict implant screws sagttial angle. Conclusions Improved 2D computer-assisted fluoroscopic navigation is simple and convenient, use anterio posterior,lateral and oblique radiographic materials to imitate anterio posterior,lateral spinal and axial pediele virtual image can precisely guide the pedicle screws implantation.
