Location-dependent change of median nerve mobility in the carpal tunnel of patients with carpal tunnel syndrome.

Abstract:

INTRODUCTION:The purpose of this study was to investigate in vivo median nerve longitudinal mobility in different segments of the carpal tunnel associated with active finger motion in carpal tunnel syndrome (CTS) patients in a comparison with healthy controls. METHODS:Eleven healthy volunteers and 11 CTS patients participated in this study. Dynamic ultrasound images captured location-dependent longitudinal median nerve mobility within the carpal tunnel during finger flexion at the metacarpophalangeal joints using a speckle cross-correlation algorithm. RESULTS:Median nerve longitudinal mobility in the carpal tunnel was significantly smaller in CTS patients (0.0037 ± 0.0011 mm/degree) compared with controls (0.0082 ± 0.0026 mm/degree) (P < .05), especially in the proximal (0.0064 vs 0.0132 mm/degree on average) and middle (0.0033 vs 0.0074 mm/degree on average) carpal tunnel sections. DISCUSSION:Median nerve mobility can potentially serve as a biomechanical marker when diagnosing CTS, or when assessing the effectiveness of surgical and conservative treatments.

journal_name

Muscle Nerve

journal_title

Muscle & nerve

authors

Yao Y,Grandy E,Evans PJ,Seitz WH Jr,Li ZM

doi

10.1002/mus.27017

subject

Has Abstract

pub_date

2020-10-01 00:00:00

pages

522-527

issue

4

eissn

0148-639X

issn

1097-4598

journal_volume

62

pub_type

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