The Artery of Adamkiewicz is the largest anterior segmental medullary artery. It is also known by the following names
- Adamkiewicz artery
- Major anterior segmental medullary artery
- Artery of the lumbar enlargement
- Great radicular artery of Adamkiewicz
- Great anterior radiculomedullary artery
- Great anterior segmental medullary artery
It typically arises from a left posterior intercostal artery between T9-T11, which branches from the aorta, and supplies the lower two thirds of the spinal cord via the anterior spinal artery. The Adamkiewicz artery sometimes arises from a lumbar vessel and in 30% of people it arises from the right side.
It is of utmost importance to preserve this artery. If damaged or obstructed, it can result in anterior spinal artery syndrome. Careful dissection is needed where this artery is encountered.