No correlation between sonographic and electrophysiological parameters in carpal tunnel syndrome.
A prospective study was carried out to investigate any correlation between electrophysiological and sonographic findings in patients with a clinical diagnosis of carpal tunnel syndrome. A total of 113 patients (113 wrists) in 90 women and 23 men, with a mean age of 60 years, underwent sonographic and electrophysiological examination. Fifty-five patients (48%) had mild, 43 (38%) moderate and 12 (11%) had severe conduction disturbances and three patients had normal conduction. Sonographic measurements showed a cross-sectional area of the median nerve of 9.9 mm(2) at the forearm and 17.8 mm(2) at the tunnel inlet. The mean anteroposterior diameter (height) of the nerve at the tunnel inlet was 2.7 mm, and the lowest height inside the tunnel was 1.8 mm. No correlation was found between sonographic and electrophysiological parameters.
['Żyluk|A|A|', 'Walaszek|I|I|', 'Szlosser|Z|Z|']
D000328:Adult D000368:Aged D000369:Aged, 80 and over D002349:Carpal Tunnel Syndrome D004568:Electrodiagnosis D055724:Electrophysiological Phenomena D005260:Female D006801:Humans D008297:Male D008875:Middle Aged D009431:Neural Conduction D011446:Prospective Studies D012680:Sensitivity and Specificity D012720:Severity of Illness Index D014463:Ultrasonography
Carpal tunnel syndrome diagnosis electrodiagnosis ultrasonography