Anatomic Variations of the Anterior Atlantodental Joint and Relations to the Apical and Alar Ligaments in a Geriatric Inhabitants.
World Neurosurg. 2017 Nov;107:506-510
Authors: Rustagi T, Iwanaga J, Sardi JP, Alonso F, Oskouian RJ, Tubbs RS
BACKGROUND: Degenerative modifications within the higher cervical backbone could also be age associated degeneration or a pathological course of similar to rheumatoid arthritis. Nevertheless, to our information, the connection between the apical and alar ligaments and these anomalies has not been mentioned. We current anatomical variations of the anterior atlantodental joint noticed throughout cadaveric dissection of grownup craniovertebral junctions, the connection with the alar and apical ligaments and talk about attainable origins and scientific implications.
METHODS: The higher cervical backbone together with a part of the occiput was dissected from cadavers whose imply age at demise was 78.9 years-old. The anterior atlantodental joint and apical and alar ligaments had been noticed and any atypical findings had been famous.
RESULTS: In eleven specimens, seven had a dens corona, three had an os odontoideum and one had a dens aureola, which arose from the higher a part of the anterior arch of the atlas. Solely 4 specimens had an apical ligament.
CONCLUSIONS: The attainable etiologies and the scientific purposes of those craniovertebral anomalies in a geriatric inhabitants must be appreciated by the clinician treating sufferers with illness on this space or deciphering imaging within the area.
PMID: 28823669 [PubMed – indexed for MEDLINE]