A new superficial landmark for the odontoid process: a cadaveric study.
Publication Title
Anatomical science international / Japanese Association of Anatomists
Document Type
Article
Publication Date
3-1-2018
Keywords
Aged; Aged, 80 and over; Cadaver; Female; Humans; Lip; Male; Odontoid Process; Radiography; Anatomy; Axis; Cervical spine; Landmarks; Odontoid process; Philtrum
Abstract
When image guidance is not available or when there is a need to confirm the findings of such technology, superficial landmarks can still play a role in providing surgeons with estimations of the position of deeper anatomical structures. To our knowledge, surface landmarks for the position of the odontoid process have not been investigated. We have therefore performed an anatomical study to investigate such a landmark. One-centimeter metallic rods were placed on the philtrum of the upper lip of 20 cadaveric head specimens. To assess the position relative to the odontoid process, we took lateral and anteroposterior radiographs and recorded the measurements. Descriptive findings from radiographic observations indicated a reasonable approximation between the philtrum and the midpoint of the odontoid process. Based on our results, we suggest that the philtrum of the upper lip can serve as a first line estimation of the position of the odontoid process and can assist in verifying this bony structure following the use of image guidance.
Area of Special Interest
Neurosciences (Brain & Spine)
Specialty/Research Institute
Neurosciences
Specialty/Research Institute
Pathology & Laboratory Medicine
