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[Lumbosciatica and nerve root anomalies].

A Sacchi, J P Rouaud, M Caroit

Revue Du Rhumatisme Et Des Maladies Osteo-Articulaires

|April 1, 1982

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This study details rare anatomical variations of the L5 and S1 nerve roots associated with lumbar pain and sciatica. These abnormalities complicate surgical treatment, potentially leading to poorer outcomes.

Area of Science:

Neurosurgery
Anatomy
Spinal Surgery

Background:

Lumbar pain and sciatica are common conditions often treated surgically.
Surgical outcomes depend on accurate anatomical identification of nerve roots.

Observation:

Three cases presented with lumbar pain and sciatica due to anomalous L5 and S1 nerve root distributions.
One case involved L5 root embedded in fibrous tissue, later identified as nerve structures.
Two cases showed L5 and S1 roots originating from a common trunk.

Findings:

These anatomical variations, including non-individualized roots and common trunks, are rare and often unrecognized preoperatively.
Associated herniated discs were present in all reported cases.
Histological examination confirmed nerve structures within presumed fibrous tissue.

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Implications:

Anomalous nerve root anatomy presents significant surgical challenges, impacting the prognosis of sciatica treatment.
Difficulty in recognizing these variations during surgery can lead to complications like postoperative paralysis.
Further research is needed to improve diagnostic and surgical strategies for such rare cases.