piriformis syndrome
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Etiology
Epidemiology
rare
Pathology
- occurs when the piriformis muscle compresses or irritates the sciatic nerve
Clinical manifestations
- see sciatica
- pain/paresthesias in the buttocks & along the sciatic nerve, often down to the leg
- pain may worsen as a result of sitting for a long period of time, climbing stairs, walking, or running
Radiology
- magnetic resonance neurography can detect abnormality of sciatic nerve near level of sciatic notch & piriformis muscle
Management
- see sciatica
- stretching exercises & massage
- NSAIDs
- corticosteroid injection near where the piriformis muscle & the sciatic nerve meet may provide temporary relief
- cessation of aggravating activities
- surgery in some cases
- prognosis is generally good
More general terms
Additional terms
References
- ↑ Lewis AM Magnetic image resonance neurography in extraspinal sciatica. Arch Neurol 2006, 63:1469 PMID: https://www.ncbi.nlm.nih.gov/pubmed/17030664
- ↑ Medical Knowledge Self Assessment Program (MKSAP) 17, 18. American College of Physicians, Philadelphia 2015, 2018.
- ↑ National Institute of Neurological Disorders and Stroke (NINDS) NINDS Piriformis Syndrome Information Page https://www.ninds.nih.gov/Disorders/All-Disorders/Piriformis-Syndrome-Information-Page