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Diagnostic Accuracy of Clinical Tests and Diagnostic Criteria for Piriformis Syndrome
Sponsor: Istanbul University - Cerrahpasa
Summary
Piriformis syndrome is a clinical condition characterized by buttock pain and/or sciatic-like symptoms, and its diagnosis remains challenging because there is no universally accepted diagnostic standard. This study aims to evaluate the diagnostic accuracy of commonly used diagnostic criteria and clinical tests for piriformis syndrome. Participants with suspected piriformis syndrome will undergo standardized physical examination and assessment of predefined diagnostic criteria. Ultrasound-guided injection of 5 mL of 2% lidocaine into the piriformis muscle will be used as the reference diagnostic procedure. A reduction of 50% or more in pain after injection will be considered confirmation of piriformis syndrome. The diagnostic performance of clinical tests and diagnostic criteria will be analyzed accordingly.
Official title: Evaluation of the Diagnostic Accuracy of Diagnostic Criteria and Clinical Tests for Piriformis Syndrome
Key Details
Gender
All
Age Range
18 Years - 75 Years
Study Type
INTERVENTIONAL
Enrollment
75
Start Date
2026-03-15
Completion Date
2026-09-15
Last Updated
2026-03-17
Healthy Volunteers
No
Conditions
Interventions
Ultrasound-Guided Piriformis Injection
Ultrasound-guided injection of 5 mL of 2% lidocaine into the piriformis muscle for diagnostic confirmation. A patient-reported pain reduction of 50% or more at 1 hour after injection will be considered confirmation of piriformis syndrome.
Locations (1)
Istanbul University-Cerrahpasa, Cerrahpasa Medical Faculty
Istanbul, Turkey (Türkiye)