Anatomy of the dens and its implications for fracture treatment: an anatomical and radiological study
| Autor: | P Fojtík, Jan Stulik, P Nesnídal, M Podhráský, Ondřej Naňka, G Hodasová |
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| Rok vydání: | 2018 |
| Předmět: |
Male
Insertion angle Bone Screws Electronic Supplementary Material Cohort Studies 03 medical and health sciences Fracture Fixation Internal 0302 clinical medicine Odontoid Process medicine Humans Orthopedics and Sports Medicine 030222 orthopedics Adult patients business.industry Craniocervical junction Anatomy Fracture treatment Cervical spine medicine.anatomical_structure Radiological weapon Cervical Vertebrae Spinal Fractures Surgery Female business Tomography X-Ray Computed 030217 neurology & neurosurgery Cervical vertebrae |
| Zdroj: | European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society. 28(2) |
| ISSN: | 1432-0932 |
| Popis: | The most common injuries to the upper cervical spine are fractures of the dens axis. Therefore, the purpose of our study was to answer three questions, namely (1) whether the size of the dens is adequate at all levels to accommodate two screws, (2) what the angle of the posterior tilt of the dens is in a healthy individual and (3) compare the measured variables between the sexes. The cohort comprised 50 males and 50 females CT examination of the craniocervical junction. We measured the five diameters of the dens and posterior dens angulation angle (PDAA) and screw insertion angle (SIA). The same dimensions were measured in a control group, consisting of 40 non-pathological second cervical vertebrae specimens. On CT scans, the mean PDAA was 162.7 degrees in males and 160.26 degrees in females; the mean SIA was 62.0 degrees in males and 60.2 degrees in females. On specimens, the mean PDAA was 169.47 degrees in males and 166.95 degrees in females; the mean SIA was 65.42 degrees in males and 64.47 degrees in females. All obtained values were higher in males; regardless of their measuring on either CT scans or specimens, differences between males and females were statistically significant (p |
| Databáze: | OpenAIRE |
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