The principal artery of the psoas major muscle

Abstract

The psoas major m. has a complex arterial supply, derived from the lumbar, iliolumbar, obturator, external iliac and common femoral a. The branches arising from the external iliac a., though quite often multiple and slender, are represented in 75% of cases by a single large-caliber vessel. This principal artery of the psoas m. is probably responsible for the curves of the external iliac a. in the aged and also in certain competitive athletes.

Endofibrosis and Kinking of the Iliac Arteries in Athletes: A Systematic Review

“…Fascia and collateral branches immobilize the iliofemoral vessels as they pass beneath the inguinal ligament and muscular branches to psoas major (which may enlarge or even become duplicated with intensive muscle activity) tether the central portion of the vessel. 35,36 This prevents the external iliac artery from moving freely during exercise, making kinking more acute and increasing the traumatic impact of hyperflexion.…”

Bilateral ischemic lumbosacral plexopathy from chronic aortoiliac occlusion presenting with progressive paraplegia

“…Meanwhile, the lumbar plexus is embedded in the posterior part of the psoas major muscle, which receives a very abundant arterial supply. 14 The vasa nervosa to the plexus are derived from the feeding artery of this muscle, in most cases the lumbar arteries. Also, various branches of the IIA, such as inferior gluteal artery via the arteria comitans nervi ischiadici and superior gluteal artery via the lateral sacral artery, feed the lumbosacral plexus.…”

An Unusual Case of Leg Pain in a Competitive Cyclist

“…The fixation at one point might increase the probability of the artery to kink and causes tethering of the central portion of the artery. 21 …”