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- W2383466024 abstract "Objective:To evaluate the possibility of the placement of C2 laminar screw on Chinese people.Method:With the help of an electronic digital caliper and a goniometer,30 dry axis specimens were collected to measure anatomic data associated with screw placement including the thickness of the C2 laminar,the height of C2 spinous process,laminar and inferior facet process.The anchoring point of the C2 laminar screws in mediolateral direction located at 5mm lateral to the midline of C2 spinous process on both sides.In rostrocaudal direction,the archoring point of the superior and inferior C2 laminar screw located at 5mm and 9mmrespectively to the superior border of C2 laminar on each side.The screw intercrossed at the base of C2 spinous process rostrocaudally via the contra side laminar and ended at the central point of the C2 inferior facet process.The length and the angle of C2 laminar screw trajectory were measured.Result:The mean thickness of the superior edge,median edge and inferior edge of C2 laminar was 3.02mm,5.91mm and 5.59mm respectivly.The mean height of C2 spinous process,laminar and inferior articular process was 12.40mm,12.95mm and 14.03mm,respectively.The mean length of the superior and inferior C2 laminar screw was 25.41mm and 27.39mm respectively.The projection angle for the superior C2 laminar screw averaged 26.4° anteriorly and 7.6° inferiorly,30.1° anteriorly and 1.4° superiorly for inferior screw.Conclusion:It's feasible and reliable for C2 laminar screw placement in Chinese people,and this could be used as a supplementary method for convertional posterior screw fixation techniques of axis." @default.
- W2383466024 created "2016-06-24" @default.
- W2383466024 creator A5021758026 @default.
- W2383466024 date "2006-01-01" @default.
- W2383466024 modified "2023-09-23" @default.
- W2383466024 title "Anatomic study of the posterior laminar screw fixation on axis" @default.
- W2383466024 hasPublicationYear "2006" @default.
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