Atlases with Arcuate Foramen Present Cortical Bone Thickening That May Contribute to Lower Fracture Risk
Por:
Sanchis-Gimeno JA, Llido S, Guede D, Nalla S, Martinez-Soriano F, Blanco-Perez E and Caeiro JR
Publicada:
1 sep 2018
Resumen:
BACKGROUND: To date, no information about the cortical bone microstructural properties in atlas vertebrae with arcuate foramen has been reported. As a result, we aimed to test in an experimental model if there is a cortical bone thickening in an atlas vertebra which has an arcuate foramen that may play a protective role against bone fracture.
METHODS: We analyzed by means of micro-computed tomography the cortical bone thickness, the cortical volume, and the medullary volume (SkyScan 1172 Bruker micro-CT NV, Kontich, Belgium) in cadaveric dry atlas vertebrae with arcuate foramen and without arcuate foramen. We also reviewed a case series of 31 posterior atlas arch fractures to correlate the possible presence in the same atlas of both fracture and arcuate foramen.
RESULTS: The micro-computed tomography study revealed significant differences in cortical bone thickness (P < 0.001), cortical volume (P < 0.004), and medullary volume (P = 0.013) values between the arcuate foramen vertebrae and the nonarcuate foramen vertebrae. The clinical series found no coexistence in the same vertebra of a posterior atlas arch fractures and the arcuate foramen.
CONCLUSIONS: An atlas with arcuate foramen presents cortical bone thickening. This advantage in bone micro-architecture seems to contribute to a lower fracture risk compared to subjects without arcuate foramen as no coexistence in the same vertebra of a posterior atlas arch fractures and arcuate foramen was found.
Filiaciones:
:
Univ Valencia, Dept Anat & Human Embryol, Fac Med, Valencia, Spain
Department of Anatomy and Human Embryology, Faculty of Medicine, University of Valencia, Valencia, Spain
Llido S:
Univ Valencia, Dept Anat & Human Embryol, Fac Med, Valencia, Spain
Department of Anatomy and Human Embryology, Faculty of Medicine, University of Valencia, Valencia, Spain
Guede D:
Trabeculae Technol Based Firm, Technol Pk Galicia, Orense, Spain
Trabeculae Technology Based Firm, Technological Park of Galicia, Ourense, Spain
Nalla S:
Univ Johannesburg, Dept Human Anat & Physiol, Fac Hlth Sci, Auckland Pk, South Africa
Department of Human Anatomy and Physiology, Faculty of Health Sciences, University of Johannesburg, Auckland Park, South Africa
Martinez-Soriano F:
Univ Valencia, Dept Anat & Human Embryol, Fac Med, Valencia, Spain
Department of Anatomy and Human Embryology, Faculty of Medicine, University of Valencia, Valencia, Spain
:
Univ Hosp La Ribera, Dept Radiol, Valencia, Spain
Department of Radiology, University Hospital de La Ribera, Alzira, Valencia, Spain
Caeiro JR:
USC Univ Hosp Complex, Orthoped Surg Serv, Santiago De Compostela, Spain
Orthopedic Surgery Service, USC University Hospital Complex, Santiago de Compostela, Spain
|