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Sciatica and claudication caused by ganglion cyst.

Guang Yang1, Xiaoyu Wen, Yubao Gong

  • 1Departments of *Orthopaedic Surgery and †Hepatology, The First Hospital of Jilin University, Changchun, China.

Spine
|December 17, 2013
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Summary
This summary is machine-generated.

A rare case of sciatica and claudication caused by a ganglion cyst compressing the sciatic nerve in a 51-year-old male is presented. Surgical removal of the cyst resulted in complete symptom resolution and return to full activity.

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Area of Science:

  • Orthopedics
  • Neurology
  • Radiology

Background:

  • Sciatica and claudication are typically associated with spinal stenosis.
  • Extraspinal causes, such as posterior ganglion cysts of the hip, are rare, with only four cases previously reported.

Observation:

  • A 51-year-old male presented with a 2-month history of right leg pain, limited walking distance, and ineffective conservative treatment for suspected lumbar disc herniation.
  • Physical examination revealed a palpable mass compressing the sciatic nerve, and MR imaging confirmed a cystic mass on the posterior aspect of the superior gemellus and obturator internus.

Findings:

  • Surgical exploration identified a ganglion cyst compressing the sciatic nerve at its outlet.
  • Post-operative follow-up at 18 months showed the patient was symptom-free and had returned to full physical activity.

Implications:

  • This case highlights that extraspinal sources, like ganglion cysts, can directly compress the sciatic nerve, causing sciatica and claudication.
  • Meticulous physical examination is crucial for differentiating extraspinal sciatica from spinal causes.