Microsurgical anatomy of the Adamkiewicz artery-anterior spinal artery junction
| Autor: | Daniel Le Gars, Eric Havet, H N'Da, Johann Peltier, Cyril Capel, Louis Chenin |
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| Rok vydání: | 2015 |
| Předmět: |
Male
Microsurgery medicine.medical_treatment Vertebral artery Anterior spinal artery 030218 nuclear medicine & medical imaging Pathology and Forensic Medicine 03 medical and health sciences 0302 clinical medicine Aneurysm Risk Factors medicine.artery medicine Cadaver Humans Radiology Nuclear Medicine and imaging Vertebral Artery Aged 80 and over Aortic Aneurysm Thoracic business.industry Dissection Anatomic Variation Angiography Anatomy medicine.disease Spinal cord Spine medicine.anatomical_structure Spinal Cord Surgery Female business Tomography X-Ray Computed 030217 neurology & neurosurgery Lumbar arteries Artery |
| Zdroj: | Surgical and radiologic anatomy : SRA. 38(5) |
| ISSN: | 1279-8517 |
| Popis: | The aim of this study is to describe the anterior spinal artery–Adamkiewicz artery (ASA–AKA) junction and establish a classification allowing defining the neurological risk in either thoracoabdominal aorta aneurysm treatment and in anterior or transforaminal thoracolumbar spine surgery. Fifteen spinal cords of fresh cadavers were dissected. Both lumbar arteries and ASA were injected with strongly diluted red-colored silicon. The dural crossing of AKA was located on the left side in 86 % of cases, between T8 and T10 in 73.33 % of cases and L1–L2 in 26.67 % of cases. The average diameter of the ascending branch of AKA was 1.10 mm (range 0.8–1.9 mm), and its average length was 30.27 mm (range 12.3–60 mm). The AKA’s arch average diameter was 11.3 mm (range 9–20 mm) with an open downward angle average of 20.1° (range 11°–30°). The descending branch of AKA which was a continuation of ASA had an average diameter of 1.33 mm (range 0.8–1.86 mm). The ASA at the top of the arch had an average diameter of 0.74 mm (range 0.2–1.77 mm). According to these findings, we have proposed a new classification with two types of junctions. The type I and its variant correlated to high neurological risk were present in 93.33 % of cases. The type II, correlated to medium or low neurological risk, was present in 6.67 % of cases. These anatomical findings allow a planning of the neurological risk before thoracoabdominal aorta aneurysm or thoracolumbar anterior or transforaminal spine surgery. |
| Databáze: | OpenAIRE |
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