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- Title
MORPHOMETRIC ANALYSIS OF TYPICAL SUBAXIAL CERVICAL SPINE PEDICLE IN AXIAL PLANE AS A PREOPERATIVE EVALUATION FOR PEDICLE SCREW INSERTION USING CT SCAN.
- Authors
Estethia, Sevline; Dahlan, Rully Hanafi; Yudoyono, Farid; Arifin, M. Z.; Adam, Achmad; Soetikno, Ristaniah D.
- Abstract
Background. Any abnormalities in subaxial typical cervical vertebrae could cause functional disorder and/or instability. Instrumentation can be applied to overcome the instability, such as pedicle screw insertion. Pedicle screw insertion in typical subaxial cervical spine is technically demanding due to its pedicle dimension. This study is designed to measure the anatomical morphometric of typical subaxial cervical pedicle in Hasan Sadikin hospital as a preoperative evaluation to avoid the complication in that procedure. Materials and methods. This study is a cross sectional study in patient who needs a CT scan examination in Neurosurgery Department Hasan Sadikin Hospital, and the image will be reconstructed using OsiriX software. Right and left pedicle length, pedicle width, projection line in pedicle screw insertion, interbifid line and pedicle transverse angle were measured in each level of C3 to C6. Results. There were 31 patients' CT scan that included in the study, in which 19 were male and 12 were female with mean age was 39,12 years ± 9,73. The highest mean of pedicle length and pedicle width was in C6, with 5,31 mm and 5,41 mm respectively. The highest number of projection line in pedicle screw insertion in axial plane was in C6, 32,43 mm. Pedicle transverse angle in mediolateral angle for pedicle screw insertion showed variations range from 42,7° to 43,9° with the widest angle was in C4. Bivariate analysis showed that each segment of cervical vertebrae and gender determine the pedicle dimensions and pedicle screw insertion with p value < 0,05. Conclusion. The pedicle dimension in typical subaxial cervical spine in our centre has a different measurement in each segment of subaxial typical cervical vertebrae and between male and female, so the knowledge of anatomical variations is needed for the operation technique and instrument size to avoid neurovascular injury in typical subaxial cervical pedicle screw operation.
- Subjects
CERVICAL vertebrae abnormalities; COMPUTED tomography
- Publication
Neurosurgery & Neurology of Kazakhstan, 2016, Vol 43, Issue 2, p3
- ISSN
1813-3908
- Publication type
Article