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Distal sciatic nerve compression by a popliteal artery aneurysm.

Y Beaudry1, J D Stewart, L Errett

  • 1Department of Medicine, McGill University, Montreal, Quebec, Canada.

The Canadian Journal of Neurological Sciences. Le Journal Canadien Des Sciences Neurologiques
|August 1, 1989
PubMed
Summary

A 77-year-old man experienced leg dysfunction due to large, thrombosed popliteal artery aneurysms. Surgical examination revealed sciatic nerve compression by the aneurysm, explaining the neurological deficits.

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Area of Science:

  • Vascular Surgery
  • Neurology
  • Orthopedic Surgery

Background:

  • Popliteal artery aneurysms are relatively uncommon but can lead to significant complications.
  • Nerve compression by vascular structures is a recognized, though infrequent, cause of neurological deficits.

Observation:

  • A 77-year-old male presented with progressive sensory and motor impairments in his right lower leg.
  • Neurological examination identified deficits consistent with tibial and common peroneal nerve involvement.
  • Palpable swellings were noted in both popliteal fossae, diagnosed as large thrombosed aneurysms.

Findings:

  • Surgical exploration of the right popliteal fossa revealed a large thrombosed aneurysm.
  • The aneurysm was identified as the causative factor compressing the distal sciatic nerve.

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Implications:

  • This case highlights the importance of considering vascular compression in the differential diagnosis of peripheral neuropathy.
  • Prompt diagnosis and surgical intervention for popliteal artery aneurysms causing nerve compression are crucial for patient outcomes.
  • Understanding this rare presentation can aid clinicians in managing similar complex cases involving vascular and neurological compromise.