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ID 111434
タイトル別表記
下位腰椎への血行分布のバリエーション
著者
手束, 文威 徳島大学大学院医科学教育部(医学専攻) 徳島大学 教育研究者総覧
キーワード
Lower lumbar spine
Variation
Vascular anatomy
Segmental artery
Iliolumbar artery
資料タイプ
学位論文
抄録
Purpose
Several papers examined the vascular anatomy of the lumbosacral region using cadavers with angiography. However, few reports used CT angiography, and discussion on variations of fourth lumbar, fifth lumbar, and lumbar branch of iliolumbar arteries were limited. To clarify the vascular variations around the lower lumbar spine including the lumbosacral region, particularly at the posterior elements, we performed anatomical analysis using computed tomography (CT).

Methods
Extra-osseous arteries surrounding the lumbar spine including the lumbosacral region were evaluated by two orthopedic surgeons independently, using 323 consecutive abdominal contrast-enhanced multi-planner CT scans that were taken for surgical plans in colon cancer patients. Subjects were 204 men and 119 women, whose ages ranged from 15 to 89 years (mean: 66.5).

Results
Each segmental artery was visible at the L1-L4 spinal levels, running from the vertebra through the lamina in ˃90% patients (right: 91.0%;left: 90.7%), while it was visible in ˂10% patients at the L5 level (right: 4.6%; left: 8.7%). The extra-osseous arterial supply to the L5 lamina was basically provided by two vessels on each side. One was mostly derived from the L4 segmental artery (right: 92.6%; left: 92.0%) that was distributed around the superior articular process, the other was derived from the iliolumbar artery (right: 62.9%; left: 55.7%) that was distributed around the inferior articular process through the lamina. There were mainly four combination patterns of those arteries. These combinations, which had been considered as regular patterns in textbooks, were observed in approximately 50% (right: 55.7%; left: 48.6%) of patients.

Conclusion
Various distributions of arteries around the lower spine were identified.
掲載誌名
European Spine Journal
ISSN
09406719
14320932
cat書誌ID
AA10852035
AA11623179
出版者
Springer Nature
25
12
開始ページ
4181
終了ページ
4187
発行日
2016-02-09
備考
内容要旨・審査要旨・論文本文の公開
本論文は, 著者Fumitake Tezukaの学位論文として提出され, 学位審査・授与の対象となっている。
The final publication is available at link.springer.com.
EDB ID
出版社版DOI
出版社版URL
フルテキストファイル
言語
eng
著者版フラグ
博士論文全文を含む
文科省報告番号
甲第3128号
学位記番号
甲医第1362号
学位授与年月日
2018-03-23
学位名
博士(医学)
学位授与機関
徳島大学
部局
医学系
病院