IRCT2016062627359N2 IRCT 2016-09-13 Vice chancellor of research, Tabriz University of Medical Science Treatment of Carpal Tunnel Syndrome Ultrasound Guided Treatment of Carpal Tunnel Syndrome 2014-11-01 anticipated 20 Complete https://irct.ir/trial/22425 interventional Randomization: Randomized, Blinding: Not blinded, Placebo: Not used, Assignment: Single, Purpose: Treatment. N/A Carpal Tunnel Syndrome. intervention: patient lies prone an wrist sets in supine position. median nerve is visualized by sonographic guidance at wrist area.after local analgesia a 22 gauge needle will be entered from ulnar side of median nerve and carpal ligament starts to be fenestrated. at the end 40 miligram of Triamcinolone is injected and needle is removed..