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[Foraminal and extraforaminal lumbar disc herniations]

Z Chen1, G Dang, F Zhou

  • 1Third Teaching Hospital, Beijing Medical University.

Zhonghua Wai Ke Za Zhi [Chinese Journal of Surgery]
|May 1, 1995
PubMed
Summary
This summary is machine-generated.

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Foraminal and extraforaminal lumbar disc herniations, though rare, present unique symptoms and are effectively treated with a specific surgical approach. This method offers good exposure and minimal damage, leading to positive patient outcomes.

Area of Science:

  • Neurosurgery
  • Orthopedic Surgery
  • Spinal Surgery

Context:

  • Foraminal and extraforaminal lumbar disc herniations represent a specific subset of lumbar disc pathologies.
  • These herniations occur less frequently than central disc herniations, accounting for 4.1% of operated cases in this study.
  • They primarily affect the upper nerve root, leading to distinct clinical presentations.

Purpose:

  • To analyze the incidence, clinical features, diagnostic methods, and surgical outcomes of foraminal and extraforaminal lumbar disc herniations.
  • To evaluate the efficacy of a surgical approach utilizing the outer edge of the pars interarticularis for these specific herniations.

Summary:

  • Ten cases of foraminal (7) and extraforaminal (3) lumbar disc herniation were diagnosed and surgically treated between August 1992 and November 1994.

Related Experiment Videos

  • Dominant symptoms included severe anterior thigh/lower leg pain, positive femoral nerve stretch test, impaired knee jerk, and quadriceps weakness.
  • Computed tomography (CT) and magnetic resonance imaging (MRI) were crucial for diagnosis, with sequestration and extrusion being common pathologies.
  • Eight patients underwent surgery via an approach at the outer edge of the pars interarticularis, yielding encouraging results.

    • Impact:

    • The study highlights the specific neurological involvement and diagnostic considerations for foraminal and extraforaminal disc herniations.
    • The described surgical approach demonstrates effectiveness with minimal destruction of the pars interarticularis and facet joint.
    • This technique minimizes the risk of lumbar instability, offering a favorable outcome for patients with these challenging disc pathologies.