The Open Orthopaedics Journal


ISSN: 1874-3250 ― Volume 11, 2017
RESEARCH ARTICLE

The Impact of Sensory, Motor and Pain Impairments on Patient- Reported and Performance Based Function in Carpal Tunnel Syndrome



Goris Nazari1, Niyati Shah2, Joy C MacDermid1, 2, *, Linda Woodhouse3
1 Physiotherapy, Health & Rehabilitation Science, London, Ontario, Canada
2 School of Rehabilitation Science, McMaster University, Hamilton, Ontario, Canada
3 Physical Therapy, University of Alberta, Edmonton, Alberta, Canada

Abstract

Background:

Research has suggested that persistent sensory and motor impairments predominate the symptoms experienced by patients with carpal tunnel syndrome (CTS); with intermittent pain symptoms, being less predominant.

Objective:

The study aims to determine the relative contribution of sensory, motor and pain impairments as contributors to patient-report or performance-based hand function.

Methods:

Fifty participants with a diagnosis of CTS confirmed by a hand surgeon and electrodiagnosis were evaluated on a single occasion. Impairments were measured for sensibility, pain and motor performance. A staged regression analysis was performed. In the first step, variables with each of the 3 impairment categories were regressed on the Symptom Severity Scale (SSS) to identify the key variables from this domain. Models were created for both self report (Quick Disabilities of arm, shoulder and hand- Quick DASH) and performance based (Dexterity) functional outcomes. Backward regression modelling was performed for SSS and then, to allow comparability of the importance of different impairments across models, the 7 significant variables from the SSS model were forced into the models.

Results:

Variables: age, touch threshold and vibration threshold of the little finger of unaffected hand, median-ulnar vibration threshold ratio of affected hand, mean pain tolerance of unaffected hand, grip strength and pinch strength of affected hand, explained 31%, 36% and 63% of the variance in SSS, Quick DASH and dexterity scores, respectively.

Conclusion:

Hand function in patients with CTS is described by variables that reflect sensory status of the median and ulnar nerves, the persons pain threshold, grip and pinch strength impairments and age.

Keywords: Carpal Tunnel Syndrome, Function, Dexterity, Quick DASH, Sensorimotor measures.


Article Information


Identifiers and Pagination:

Year: 2017
Volume: 11
First Page: 1258
Last Page: 1267
Publisher Id: TOORTHJ-11-1258
DOI: 10.2174/1874325001711011258

Article History:

Received Date: 06/09/2017
Revision Received Date: 30/9/2017
Acceptance Date: 05/10/2017
Electronic publication date: 10/11/2017
Collection year: 2017

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© 2017 Nazari et al.

open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: https://creativecommons.org/licenses/by/4.0/legalcode. This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.


* Address correspondence to this author at the School of Rehabilitation Science, Room 403, Institute of Applied Health Sciences, 1400 Main St W, Hamilton, ON, Canada, Tel: (905) 535-9140, Ext: 22867, Fax: (905) 524 - 0069; Emails: macderj@mcmaster.ca; jmacderm@uwo.ca


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