Large anterior radiculomedullary artery reinforcing thoracolumbar spinal cord blood supply, with a variable origin and course.
Anatomy
Organization and role
It often arises from a lower thoracic or upper lumbar segmental artery, frequently on the left. These usual patterns cannot predict its location in an individual.
Clinical relevance and investigation
Identifying it can matter before selected aortic or spinal procedures. Preserving its supply helps limit spinal ischemia risk; it is not a target for nonsurgical decompression.
Points to consider
Neural tissue depends on continuous blood supply. A vessel disorder can have consequences different from disc compression, even when symptoms overlap. Sudden weakness or new loss of function requires urgent assessment.
Role of TAGMED care
At TAGMED, assessment aims to understand symptoms, history and functional limitations. Manual care and osteopathy, motorized spinal decompression, laser and shockwave have different indications. The term described in this entry is not enough to select any of these modalities. Their relevance, limitations and possible contraindications should be discussed in relation to diagnosis and individual goals.
Related concepts and distinctions
These concepts belong to the same field, but are not synonyms.
- Posterior spinal arteries — Posterior longitudinal arteries contributing to the dorsal spinal cord blood supply and connected to a perimedullary vascular network.
- Vertebral artery — Artery usually arising from the subclavian artery, passing through cervical transverse foramina before contributing to posterior brain circulation.
- Anterior spinal artery — Longitudinal artery on the anterior spinal cord that, with segmental contributions, supplies much of its anterior portion.
Conceptual guide: Artery of Adamkiewicz. Blocks summarize useful relationships; they are not an individual anatomical image.
Medical references
- OpenStax, Rice University. Anatomy and Physiology 2e — Circulation and the Central Nervous System.
- Radiological Society of North America. RadLex Radiology Lexicon — terminology resource.
References document the topic; their inclusion does not imply endorsement of TAGMED services by those organizations.
Educational information from The Spine Page. This entry does not replace an individual assessment. Documentary version: October 13, 2026. Sylvain Desforges, B.Sc., D.O., N.D., osteopath and naturopath.
TAGMED clinic contact details
For non-urgent consultations and information about available services.
Clinique TAGMED — Terrebonne
1150, rue Lévis, Suite 200
Terrebonne (Québec) J6W 5S6
450‑704‑4447
Clinique TAGMED — Montréal
1140, avenue Beaumont
Mont-Royal (Québec) H3P 3E5
1‑877‑672‑9060
