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Maigne, R. Low back pain of thoracolumbar origin (T11-T12-L1). In: Maigne, R., Second Edition: Diagnosis and Treatment of Pain of Vertebral Origin. Taylor and Francis Group, 2006:289–98. McCall IW, Park WH, O’Brien JP. Induced pain referral from posterior lumbar elements in normal subjects. Spine 1979;4441–6.
[5] [11] [12] The onset of pain can vary, with some patients report sudden onset of pain with a known inciting incident. [13] These symptoms can be exacerbated by lumbar flexion, extension, and rotation. [1] Manual compression over the posterior superior iliac crest, such as with wearing tight clothing and belts, can also reproduce symptoms.
Nerve compression syndrome, or compression neuropathy, or nerve entrapment syndrome, is a medical condition caused by chronic, direct pressure on a peripheral nerve. [1] It is known colloquially as a trapped nerve , though this may also refer to nerve root compression (by a herniated disc , for example).
The three terminal branches of this nerve are the iliohypogastric, ilioinguinal, and the genitofemoral nerves. L1 supplies many muscles, either directly or through nerves originating from L1. They may be innervated with L1 as single origin, or be innervated partly by L1 and partly by other spinal nerves. The muscles are: quadratus lumborum (partly)
It is formed by the divisions of the first four lumbar nerves (L1-L4) and from contributions of the subcostal nerve (T12), which is the last thoracic nerve. Additionally, the ventral rami of the fourth lumbar nerve pass communicating branches, the lumbosacral trunk, to the sacral plexus. The nerves of the lumbar plexus pass in front of the hip ...
The thoracic spinal nerve 12 (T12) is a spinal nerve of the thoracic segment. [1] It originates from the spinal column from below the thoracic vertebra 12 (T12).
Symptoms suggestive of cord compression are back pain, a dermatome of increased sensation, paralysis of limbs below the level of compression, decreased sensation below the level of compression, urinary and fecal incontinence and/or urinary retention. Lhermitte's sign (intermittent shooting electrical sensation) and hyperreflexia may be present.
Symptoms are most commonly bilateral and symmetrical, but they may be unilateral; leg pain is usually more troubling than back pain. [ 6 ] Pseudoclaudication, now generally referred to as neurogenic claudication , typically worsens with standing or walking, and improves with sitting, and is often related to posture and lumbar extension.