Journal
JOURNAL OF NEUROSURGERY-SPINE
Volume 4, Issue 4, Pages 342-346Publisher
AMER ASSOC NEUROLOGICAL SURGEONS
DOI: 10.3171/spi.2006.4.4.342
Keywords
extraforaminal stenosis; radiculopathy; lumbar spine; lumbosacral tunnel; sacral ala; decompression; microendoscopy
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The authors report the cases of three patients with L-5 radiculopathy caused by extraforaminal entrapment of the L-5 spinal nerve at the lumbosacral tunnel; this structure comprises the lumbosacral ligament, the sacral ala, and the L-5 and S-1 vertebral bodies. All three patients Suffered severe leg pain and neurological deficits compatible with L-5 radiculopathy. Decompressive surgery involved the microendoscopic partial resection of the sacral ala along the L-5 spinal nerve. All patients experienced immediate pain relief postoperatively. Microendoscopic partial resection of the sacral ala is an effective and minimally invasive surgical option for patients with extraforaminal entrapment of the L-5 spinal nerve.
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