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Conjoined lumbosacral nerve roots

J G Gomez1, J W Dickey, T B Bachow

  • 1Department of Surgery, Holy Cross Hospital, Ft. Lauderdale, Florida.

Acta Neurochirurgica
|January 1, 1993
PubMed
Summary
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Conjoined lumbosacral nerve roots, a congenital anomaly, can cause persistent low back pain and failed back syndrome. High-quality MRI is effective for diagnosis, potentially avoiding invasive CT-myelography.

Area of Science:

  • Neurology
  • Radiology
  • Anatomy

Background:

  • Conjoined lumbosacral nerve roots are a congenital anomaly potentially causing lumbosciatic pain.
  • Undiagnosed symptomatic cases can contribute to failed back syndrome.
  • Conventional diagnostic methods like CT-myelography have limitations.

Observation:

  • Anatomical studies reveal an incidence of 14% for this anomaly.
  • Water-soluble contrast myelography shows a diagnostic frequency of 4%.
  • This paper details five consecutive cases over one year.

Findings:

  • High-quality Magnetic Resonance Imaging (MRI) with coronal views can identify conjoined lumbosacral nerve roots.
  • MRI offers a non-invasive alternative to CT-myelography for diagnosing this condition.

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Implications:

  • Improved diagnostic accuracy for failed back syndrome.
  • Reduced need for invasive procedures like CT-myelography.
  • Enhanced understanding of the clinical significance of conjoined lumbosacral nerve roots.