Abstract
Introduction
This article describes anterior disco-osteo-arterial conflict as an insofar unsuspected mechanism of arterial flow impairment potentially leading to spinal cord ischemia and infarction.
Methods
The anterior disco-osteo-arterial conflict described in this report is illustrated with angiographic observations of patients presenting with spinal cord ischemia documented by MRI, and radiculomedullary flow impairment diagnosed by spinal digital subtraction angiography and spinal CTA.
Results
Proximal intersegmental artery flow impairment was found in association with anterior disc bulging and anterior osteophytic formation, alone or in combination. Patients either presented with an initial acute medullary syndrome or with a long-standing history of spinal claudication with acute secondary pejoration.
Conclusion
Spinal ischemia can be the result of intersegmental and radiculomedullary flow impairment caused by an anterior disco-osteo-arterial conflict.
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We declare that all human and animal studies have been approved by the Johns Hopkins Institutional Review Board Committee and have therefore been performed in accordance with the ethical standards laid down in the 1964 Declaration of Helsinki and its later amendments. We declare that all patients gave informed consent prior to inclusion in this study.
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PG receives research grants paid to the institution from Siemens Medical and Toshiba Medical and consults for Codman Neurovascular.
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Ullman, N., Gregg, L., Becker, D. et al. Anterior disco-osteo-arterial conflict as a cause of intersegmental arterial flow impairment and spinal cord ischemia. Neuroradiology 58, 1109–1115 (2016). https://doi.org/10.1007/s00234-016-1739-1
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DOI: https://doi.org/10.1007/s00234-016-1739-1