Piriformis Syndrome; Extracorporeal Shock Wave Therapy and Dry Needling

This study is being conducted on patients with piriformis syndrome. Patients are divided into two groups by list randomization method: Extracorporeal shock wave therapy (ESWT) group and Dry neddling (DN) group. Both groups of patients agreed to perform basic stretching exercises. The ESWT group received 3 sessions of radial ESWT, 1 session per week. The DN group received 3 sessions of ultrasound-guided needling, 1 session per week. Clinical evaluations of the participants were performed at the beginning of treatment, 1 month, and 3 months after treatment.