# Effect of Ultrasound-guided Piriformis Muscle Corticosteroid Injection Versus Extracorporeal Shock Wave Therapy for Piriformis Syndrome: a Randomized Control Trial

> **NCT04684537** · NA · COMPLETED · sponsor: **Shin Kong Wu Ho-Su Memorial Hospital** · enrollment: 70 (actual)

## Conditions studied

- Piriformis Syndrome
- Corticosteroid Injection
- Extracorporeal Shockwave Therapy
- Therapeutic Exercise

## Interventions

- **PROCEDURE:** Extracorporeal shockwave therapy (ESWT)
- **PROCEDURE:** Ultrasound-guided piriformis steroid injection

## Key facts

- **NCT ID:** NCT04684537
- **Lead sponsor:** Shin Kong Wu Ho-Su Memorial Hospital
- **Sponsor class:** OTHER
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2021-01-01
- **Primary completion:** 2022-12-31
- **Final completion:** 2022-12-31
- **Target enrollment:** 70 (ACTUAL)
- **Last updated:** 2023-07-12


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04684537

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04684537, "Effect of Ultrasound-guided Piriformis Muscle Corticosteroid Injection Versus Extracorporeal Shock Wave Therapy for Piriformis Syndrome: a Randomized Control Trial". Retrieved via AI Analytics 2026-05-29 from https://api.ai-analytics.org/clinical/NCT04684537. Licensed CC0.

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