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Diagnostic Accuracy of Clinical Tests and Diagnostic Criteria for Piriformis Syndrome

NCT07473349 · Status: NOT_YET_RECRUITING · Phase: NA · Type: INTERVENTIONAL · Enrollment: 75

Last updated 2026-03-17

No results posted yet for this study

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.

Conditions

  • Piriformis Syndrome
  • Gluteal Pain

Interventions

DIAGNOSTIC_TEST

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.

Sponsors & Collaborators

  • Istanbul University - Cerrahpasa

    lead OTHER

Study Design

Allocation
NA
Purpose
DIAGNOSTIC
Masking
NONE
Model
SINGLE_GROUP

Eligibility

Min Age
18 Years
Max Age
75 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2026-03-15
Primary Completion
2026-09-15
Completion
2026-09-15

Countries

  • Turkey (Türkiye)

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07473349 on ClinicalTrials.gov