Ultrasound-guided hydrodissection decreases gliding resistance of the median nerve within the carpal tunnel.

ABSTRACT:

Introduction

The aim of this study was to assess alterations in median nerve (MN) biomechanics within the carpal tunnel resulting from ultrasound-guided hydrodissection in a cadaveric model.

Methods

Twelve fresh frozen human cadaver hands were used. MN gliding resistance was measured at baseline and posthydrodissection, by pulling the nerve proximally and then returning it to the origin. Six specimens were treated with hydrodissection, and 6 were used as controls.

Results

In the hydrodissection group there was a significant reduction in mean peak gliding resistance of 92.9 ± 34.8 mN between baseline and immediately posthydrodissection (21.4% ± 10.5%; P = 0.001). No significant reduction between baseline and the second cycle occurred in the control group: 9.6 ± 29.8 mN

SUBMITTER: Evers S 

PROVIDER: S-EPMC5722677 | biostudies-literature | 2018 Jan

REPOSITORIES: biostudies-literature