Transverse Movement of the Median Nerve in the Carpal Tunnel during Wrist and Finger Motion in Patients with Carpal Tunnel Syndrome

• DOI: 10.1620/tjem.236.233
• Publication Date: 2015-07-01T18:03:57Z
• Authors: Mitsuhiko Nanno; Takuya Sawaizumi; Norie Kodera; Yuji Tomori; Shinro Takai
• Keywords: Male; Movement; Wrist; Carpal Tunnel Syndrome; Median Nerve; Fingers; 03 medical and health sciences; 0302 clinical medicine; Humans; Female; Aged; Ultrasonography

Carpal tunnel syndrome (CTS) is the most common peripheral compression neuropathy of upper extremity. Repetitive wrist and finger motion has been suggested as a major factor pathogenesis CTS. However, little known about pathomechanics We aimed to evaluate movement median nerve in carpal during motions using transverse ultrasound 21 patients with CTS (5 men 16 women mean age 69.0 years). examined quantitatively location coordinate within at varied positions all fingers full extension flexion respectively affected unaffected sides. thus found that motion, moved significantly more ulnopalmarly side compared (p < 0.05). Especially, palmar-flexion position provocative test, 0.05) among side. The was strongly compressed against ligament by flexor tendons. Additionally, displacement amount dorsal-palmar direction smaller than These findings indicate such pattern potential distinguish from individuals. This information could be useful better understanding CTS, further improvement diagnosis treatment for