The Effect of Perineural Injection Therapy in Patients With Carpal Tunnel Syndrome

Carpal tunnel syndrome (CTS) is the most common peripheral entrapment neuropathy with involving compression of the median nerve in the carpal tunnel. Rather than other progressive disease, CTS is characterized by remission and recurrence. Although many conservative managements of CTS, the effectiveness of these methods is insignificant or only persist for a short duration. Recently, the ultrasound-guided perineural injection with 5% dextrose was widely used for entrapment neuropathy with positive benefit. However, current studies have not entirely proved the effects of perineural injection on peripheral neuropathy because these studies enrolled small number of patients and lacked controlled design. The investigators design a randomized, double-blind, controlled trail to assess the effect after ultrasound-guided perineural injection with 5% dextrose in patients with CTS.