Thread ultrasound-guided carpal tunnel release Oct. 01, 2021 Overview Show transcript Overview This incisionless release — known as thread ultrasound-guided carpal tunnel release (TCTR) — uses an abrasive thread looped percutaneously to dissect the transverse carpal ligament (TCL) and is performed using local anesthesia. Share Doximity Facebook LinkedIn Twitter Print details Receive Mayo Clinic news in your inbox. Sign up VID-20521490 Medical Professionals Thread ultrasound-guided carpal tunnel release