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The iliolumbar ligament strengthens the lumbosacral joint assisted by the lateral lumbosacral ligament, and, like all other vertebral joints, by the posterior and anterior longitudinal ligaments, the ligamenta flava, and the interspinous and supraspinous ligaments. [4] It reduces the range of movement of the lumbosacral joint. [6]
The circulation after ligature of the internal iliac artery is carried on by the anastomoses of: [8] the iliolumbar artery (from the posterior division of the internal iliac artery) with the last lumbar artery (from the aorta)
[1] [2] In ancient Rome, ligatures were used to treat hemorrhoids. [3] Spanish Muslim doctor Al-Zahrawi described the procedure around the year 1000 in his book Kitab al-Tasrif. [4] The concept of a ligature was reintroduced some 500 years later by Ambroise Paré and first performed by him in the village of Damvillers.
The iliolumbar artery is the first branch of the posterior trunk of the internal iliac artery. [1] It turns upward behind the obturator nerve and the external iliac artery and vein, to the medial border of the psoas major muscle, behind which it divides into: Lumbar branch of iliolumbar artery; Iliac branch of iliolumbar artery
The iliac branch of the iliolumbar artery (ramus iliacus) descends to supply the iliacus muscle; some offsets, running between the muscle and the bone, anastomose with the iliac branches of the obturator artery; one of these enters an oblique canal to supply the bone, while others run along the crest of the ilium, distributing branches to the gluteal and abdominal muscles, and anastomosing in ...
The iliolumbar vein is the vena comitans of the iliolumbar artery. The obturator nerve crosses superficial to it. [1] A single vein is found more commonly than a double vein. [2] It drains vertebral segments four and five. [3] It is closely related to the ascending lumbar vein. [3]
The right common iliac vein is virtually vertical and lies behind and then lateral to its artery. Each common iliac vein receives iliolumbar veins , while the left also receives the median sacral vein which lies on the right of the corresponding artery.
The lumbar branch of the iliolumbar artery (ramus lumbalis) supplies the psoas major and quadratus lumborum, anastomoses with the last lumbar artery, and sends a small spinal branch through the intervertebral foramen between the last lumbar vertebra and the sacrum, into the vertebral canal to supply the cauda equina