lumbosacral

n.

[L. lumbus loin + E. sacral.]
(Anat.) Of or pertaining to the loins and sacrum; as, the lumbosacral nerve, a branch of one of the lumber nerves which passes over the sacrum.

---

Pertaining to the lumbar and sacral region, or to the lumbar vertebrae and sacrum.

• l. instability — see lumbosacral stenosis (below).
• l. intumescence — the thicker portion of the spinal cord from which the roots of the lumbosacral plexus originate, corresponding to the caudal, cervical lumbar and the sacral spinal segments.
• l. luxation — may result from trauma; common in dogs and cats. Neurological deficits result from injury to spinal nerves, and parenchymal hemorrhage and edema in spinal cord segments distant from the site.
• l. plexus — a network made up of the caudal lumbar and sacral spinal nerves giving rise to the femoral, obturator, cranial gluteal, caudal gluteal, sciatic and pudendal nerves; innervates the perineum and muscles of the pelvic limb.
• l. plexus injury — severe trauma to the hindlimbs may cause injury to the lumbosacral plexus, causing femoral and sciatic nerve deficits (inability to bear weight, extend or flex the stifle, dropped hock, and knuckling onto the digits).
• l. spondylopathy — see lumbosacral stenosis (below).
• l. stenosis — a reduction in diameter of the spinal canal at the level of the lumbosacral articulation may be caused by congenital anomalies of the vertebrae or acquired lesions. Weakness, pain and paresthesia with self-mutilation of the pelvic limbs and tail are clinical signs in dogs. Occurs as a congenital anomaly in some smaller dog breeds, and as an acquired defect in larger breeds, particularly the German shepherd dog.
• l. syndrome — lesions involving the lumbosacral tumescence or the lumbosacral nerve roots. Signs include flaccid paresis or paralysis of pelvic limbs, paresthesia and sensory loss in the pelvic limbs, anal sphincter, tail, bladder and urethral sphincter, depressed or absent postural reactions in the pelvic limbs, and urine retention with passive incontinence. See also lumbosacral stenosis and lumbosacral plexus injury (above), cauda equina neuritis.

IN BRIEF: adj. - Of or relating to or near the small of the back and the back part of the pelvis between the hips.

Lumbosacral Support Beige	Lumbosacral Back Support Belts
Lumbosacral Support Belt