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Electrodiagnostic Grade and Carpal Tunnel Release Outcomes: A Prospective Analysis
Journal article   Peer reviewed

Electrodiagnostic Grade and Carpal Tunnel Release Outcomes: A Prospective Analysis

Michael Rivlin, Amir R. Kachooei, Mark L. Wang and Asif M. Ilyas
The Journal of hand surgery (American ed.), v 43(5), pp 425-431
01 May 2018
DOI: https://doi.org/10.1016/j.jhsa.2017.12.002
PMID: 29396311

Abstract

Carpal tunnel release carpal tunnel syndrome electrodiagnostic study endoscopic
The value of electrodiagnostic (EDX) study grades as a prognostic indicator of clinical results after carpal tunnel release (CTR) remains controversial. In this study, we tested the primary null hypothesis that symptom relief after CTR would not differ based on EDX grade. Secondarily, we evaluated the degree of symptomatic and functional postoperative improvement relative to preoperative EDX grade. We prospectively evaluated 199 consecutive patients with 256 hands after CTR confirmed with EDX. Data were collected before surgery and patients were observed at 2 weeks and 3 months after surgery. There were 20 hands with mild, 126 with moderate, and 110 with severe involvement in the preoperative EDX. Demographic, EDX grade (mild, moderate, or severe); surgical parameters; Quick–Disabilities of the Arm, Shoulder, and Hand questionnaire; symptom severity scale, functional status scale, pain catastrophizing scale, and visual analog scale data were collected and analyzed. There was significant improvement in Quick–Disabilities of the Arm, Shoulder, and Hand, symptom severity scale, and functional status scale scores from the preoperative to 2-week and 3-month postoperative visits in all categories of EDX grade. There was no significant difference in the extent of recovery by the 2-week and 3-month visits relative to EDX grade. Catastrophic thinking did not have a significant effect on any of the 3 groups. Pain decreased dramatically at 2 weeks after surgery but there was no additional significant difference in visual analog scale scores between the 2-week and 3-month postoperative visits. Postoperative pain improvement occurred regardless of EDX grade. There were no major complications or reoperations in any group. Carpal tunnel release demonstrated consistently significant improvement in outcomes regardless of EDX grade at initial and final follow-up. The extent of postoperative improvement after CTR overall was also not statistically different between groups with differing EDX severity. Older patients with severe CTS achieved more modest gains. Prognostic II.

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Collaboration types
Domestic collaboration
Web of Science research areas
Orthopedics
Surgery
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