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Posterior decompression of far-out foraminal stenosis caused by a lumbosacral transitional vertebra--case report.

Authors
  • Miyoshi, Yasuyuki
  • Yasuhara, Takao
  • Date, Isao
Type
Published Article
Journal
Neurologia medico-chirurgica
Publication Date
Jan 01, 2011
Volume
51
Issue
2
Pages
153–156
Identifiers
PMID: 21358163
Source
Medline
License
Unknown

Abstract

A 29-year-old man presented with a rare case of far-out foraminal stenosis with radiculopathy caused by osteophyte formation secondary to an anomalous articulation between the transverse process and the sacral ala. Diagnosis of unilateral far-out foraminal entrapment of the L5 spinal nerve below a transitional vertebra (TV) depended on selective radiculography and nerve root block. Computed tomography after selective radiculography clearly demonstrated foraminal entrapment of the L5 nerve root via the osteophytes. The patient underwent posterior decompression by resection of the osteophytes using an operating microscope and experienced good relief of radicular pain. This case illustrates the effectiveness and some refinements of posterior decompression for radicular pain caused by far-out foraminal stenosis below a TV and compression of the L5 spinal nerve.

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