Neurophysiological classification of the Carpal Tunnel Syndrome
DOI:
https://doi.org/10.11606/issn.2317-0190.v14i4a102835Keywords:
Carpal Tunnel Syndrome, Hand, ElectromyographyAbstract
The aim of this study was to evaluate the clinical correlation of the neurophysiological scale of the Carpal Tunnel Syndrome (CTS). The hands were classified in 6 grades: minimum/grade 1 (comparative test / altered short segment, normal sensitive and motor conductions), mild/grade 2 (altered sensitive conduction, normal motor conduction), moderate/grade 3 (altered sensitive and motor conductions, normal sensitive amplitude), moderate/grade 4 (altered sensitive and motor conductions, low sensitive amplitude), severe/grade 5 (absent sensitive conduction, altered motor conduction) and extremely severe/grade 6 (absent sensitive and motor conductions). A prospective study was carried out in 400 hands with CTS. 56 hands (14%) were classified as grade 1,109 hands (27.3%) as grade 2, 129 hands (32.3%) as grade 3, 78 hands (19.5%) as grade 4, 22 hands (5.5%) as grade 5 and 6 hands (1.5%) as grade 6. There was a significant positive correlation (p < 0.01) between the neurophysiological scale of CTS and the patients’ ages, the duration of CTS, the frequency of reported classical CTS history and the frequency of night pain symptoms, paresthesia and numbness. Additionally, there was a significant positive correlation between the neurophysiological scale and the frequency of Tinel`s sign, hypoesthesia on the 2nd digit, weakness and hypotrophy of the thenar muscles.
Downloads
References
Padua L, LoMonaco M, Gregori B, Valente EM, Padua R, Tonali P. Neurophysiological classification and sensitivity in 500 carpal tunnel syndrome hands. Acta Neurol Scand. 1997;96(4):211-7.
Stevens JC. AAEM minimonograph #26: the electrodiagnosis of carpal tunnel syndrome. American Association of Electrodiagnostic Medicine. Muscle Nerve. 1997;20(12):1477-86.
Rempel D, Evanoff B, Amadio PC, de Krom M, Franklin G, Franzblau A, et al. Consensus criteria for the classification of carpal tunnel syndrome in epidemiologic studies. Am J Public Health. 1998;88(10):1447-51.
Bland JD. A neurophysiological grading scale for carpal tunnel syndrome. Muscle Nerve. 2000;23(8):1280-3.
You H, Simmons Z, Freivalds A, Kothari MJ, Naidu SH. Relationships between clinical symptom severity scales and nerve conduction measures in carpal tunnel syndrome. Muscle Nerve. 1999;22(4):497-501.
American Association of Electrodiagnostic Medicine, American Academy of Neurology, and American Academy of Physical Medicine and Rehabilitation. Practice parameter for electrodiagnostic studies in carpal tunnel syndrome: summary statement. Muscle Nerve. 2002;25(6):918-22.
Jablecki CK, Andary MT, So YT, Wilkins DE, Williams FH. Literature review of the usefulness of nerve conduction studies and electromyography for the evaluation of patients with carpal tunnel syndrome. AAEM Quality Assurance Committee. Muscle Nerve. 1993;16(12):1392-414.
Giannini F, Cioni R, Mondelli M, Padua R, Gregori B, D'Amico P, et al. A new clinical scale of carpal tunnel syndrome: validation of the measurement and clinical-neurophysiological assessment. Clin Neurophysiol. 2002;113(1):71-7.
Dyck PJ, Thomas PK. Peripheral neuropathy: volume 2. 4th ed. Philadelphia: Saunders; 2005. p.1435-61.
Schrijver HM, Gerritsen AAM, Strijers RLM, Uitdehaag BMJ, Scholten RJP, de Vet H, et al.Corrrelating Nerve Conduction Studies and Clinical Outcome Measures on Carpal Tunnel Syndrome: Lessons From a Randomized Controlled Trial. J Clin Neurophysiol.2005;22(3):216-21.
Bodofsky EB, Campellone JV, Wu KD, Greenberg WM. Age and the severity of carpal tunnel syndrome. Electromyogr Clin Neurophysiol. 2004;44(4):195-9.
Downloads
Published
Issue
Section
License
Copyright (c) 2007 Acta Fisiátrica
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
