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Correlation of ultrasound cross‐sectional area of the median nerve, nerve conduction studies and 2‐point discrimination
Author(s) -
Panagopoulos Georgios N.,
Wu Tiffany,
Fowler John R.
Publication year - 2019
Publication title -
muscle and nerve
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.025
H-Index - 145
eISSN - 1097-4598
pISSN - 0148-639X
DOI - 10.1002/mus.26374
Subject(s) - carpal tunnel syndrome , median nerve , medicine , nerve conduction , ultrasound , nerve conduction study , correlation , anatomy , cross sectional study , surgery , radiology , pathology , mathematics , geometry
The purpose of this study was to determine the correlation between a measure of physical performance, a measure of physiology and a measure of anatomy in the setting of carpal tunnel syndrome (CTS). Methods A retrospective review of 215 consecutive patients with suspected CTS was conducted. All patients were evaluated with static 2‐point discrimination (2PD), ultrasound (US) measurement of the median nerve cross‐sectional area (CSA), and nerve conduction studies (NCS). Correlations between 2PD and US and NCS parameters were calculated. The ability of US/NCS to predict 2PD was evaluated. Results Analysis failed to prove a statistically significant correlation between 2PD and median nerve CSA. A weak correlation was detected between 2PD and NCS parameters. When 2PD was used as a reference standard, NCS parameters combined had the greatest sensitivity, followed by US. Conclusions Currently used diagnostic tests (NCS and US) correlate poorly with 2PD. Muscle Nerve 000 : 000–000, 2018 Muscle Nerve 59 :236–239, 2019