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Electrophysiological Assessment of Carpal Tunnel Syndrome in Patients Over 70 Years of Age Takako KANATANI 1 , Issei NAGURA 1 , Masatoshi SUMI 1 , Takeshi KOKUBO 2 , Masahiro KUROSAKA 2 1Department of Orthopaedic Surgery, Kobe Rosai Hospital 2Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine Keyword: 手根管症候群 , carpal tunnel syndrome , 電気生理学的評価 , electrophysiological assessment , 手根管開放術 , carpal tunnel release pp.1085-1089
Published Date 2013/11/25
DOI https://doi.org/10.11477/mf.1408102877
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 Background:The purpose in this study was to assess in elderly carpel tunnel syndrome (CTS) who tend to have advanced stage objectively by using electrophysiological severity scale.

 Method:The preoperative severity of carpel tunnel syndrome CTS and postoperative recovery of patients over 70 years of age after carpel tunnel release (CTR) aged over 70 were evaluated on the following electrophysiological severity scale:Stage 1, Normal DML and normal SCV;Stage 2, DML≧4.5 ms and normal SCV;Stage 3, DML≧4.5 ms and SCV<40.0 m/s;Stage 4, DML≧4.5ms and non-measurable SCV;Stage 5;non-measurable DML and non-measurable SCV.

 Outcome:Preoperatively, 87 of 95 patients (91.6%) presented with severe CTS (Stage 4 or 5). One year postoperatively, most of the patients demonstrated electrophysiological recovery, 38 patients (40%) had improved to Stage 1 or Stage 2 (p<0.0001).

 Conclusion:We conclude that classification by the above electrophysiological severity scale for CTS in the patients over 70 years of age is useful for assessing the outcome of CTR as a treatment for CTS objectively.


Copyright © 2013, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1286 印刷版ISSN 0557-0433 医学書院

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