Status:
COMPLETED
Effect of Ultrasound-guided Piriformis Muscle Corticosteroid Injection Versus Extracorporeal Shock Wave Therapy for Piriformis Syndrome: a Randomized Control Trial
Lead Sponsor:
Shin Kong Wu Ho-Su Memorial Hospital
Conditions:
Piriformis Syndrome
Corticosteroid Injection
Eligibility:
All Genders
20-80 years
Phase:
NA
Brief Summary
In this study, the investigators aim to compare the effect of extracorporeal shockwave therapy with ultrasound-guided piriformis coticosteroid injection in treatment of PS.
Detailed Description
Piriformis syndrome (PS) is one of the common etiology of low back pain. The cause of PS is due to myofascial syndrome of piriformis muscle, leading to piriformis muscle spasm, string-like taut band, ...
Eligibility Criteria
Inclusion
- Age from 20 to 80
- Unilateral buttock involvement without leg pain or paresthesia
- Duration of symptoms ≥1 month
- Positive trigger point or taut band at piriformis muscle, confirmed by palpation and ultrasound examination
- Positive FAIR (flexion, adduction, internal rotation) test
- Positive piriformis resistive test (patient actively abducts and/or externally rotates the hip while the examiner resists these movements
Exclusion
- Having received hip, pelvis, or lumbar spine surgery
- Low back pain or buttock pain due to lumbosacral spine, hip or pelvis lesion other than piriformis syndrome
- Having received shock wave therapy or corticosteroid injection for buttock pain within the past one month
- Neurologic deficit in in the lower limbs
- History of drug allergy to local anesthetics or corticosteroids
- Pregnancy
Key Trial Info
Start Date :
January 1 2021
Trial Type :
INTERVENTIONAL
Allocation :
ACTUAL
End Date :
December 31 2022
Estimated Enrollment :
70 Patients enrolled
Trial Details
Trial ID
NCT04684537
Start Date
January 1 2021
End Date
December 31 2022
Last Update
July 12 2023
Active Locations (1)
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1
Shin Kong Wu Ho-Su Memorial Hospital
Taipei, Taiwan