Prognosis of severe carpal tunnel syndrome with absent compound muscle action potential
ABSTRACT Introduction Opponensplasty is a surgical option for patients with severe carpal tunnel syndrome (CTS). We investigated prognostic factors of patients who lack a preoperative compound muscle action potential (CMAP) of the abductor pollicis brevis (APB) muscle to determine the necessity for...
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crwiley:10.1002/mus.25004 2024-06-02T08:05:47+00:00 Prognosis of severe carpal tunnel syndrome with absent compound muscle action potential Kamiya, Hisao Kimura, Michio Hoshino, Satoshi Kobayashi, Masahito Sonoo, Masahiro Health and Labour Sciences Ministry of Health, Labour and Welfare of Japan 2016 http://dx.doi.org/10.1002/mus.25004 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fmus.25004 https://onlinelibrary.wiley.com/doi/pdf/10.1002/mus.25004 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Muscle & Nerve volume 54, issue 3, page 427-431 ISSN 0148-639X 1097-4598 journal-article 2016 crwiley https://doi.org/10.1002/mus.25004 2024-05-03T11:20:52Z ABSTRACT Introduction Opponensplasty is a surgical option for patients with severe carpal tunnel syndrome (CTS). We investigated prognostic factors of patients who lack a preoperative compound muscle action potential (CMAP) of the abductor pollicis brevis (APB) muscle to determine the necessity for single‐stage opponensplasty. Methods We retrospectively enrolled 22 hands of 22 CTS patients. Prognostic factors considered were age, diabetes mellitus, the median sensory nerve action potential, distal motor latency of the second lumbrical (2L) CMAP (2L‐DML), and its amplitude (2L‐Amp). Postoperative APB‐CMAP amplitude (post APB‐Amp) at 12 months was used as the outcome measure. Results Only 2L‐DML showed a significant correlation with post APB‐Amp (r = ‐0.56). The contribution of 2L‐Amp was not significant, although 3 hands with absent 2L‐CMAP had a poor electrophysiological recovery. Conclusions Prolonged 2L‐DML and absent 2L‐CMAP seem to be poor prognostic factors. Concurrent opponensplasty may not be necessary in patients with 2L‐DML of 8 ms or less. Muscle Nerve 54 : 427–431, 2016 Article in Journal/Newspaper DML Wiley Online Library Muscle & Nerve 54 3 427 431 |
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English |
description |
ABSTRACT Introduction Opponensplasty is a surgical option for patients with severe carpal tunnel syndrome (CTS). We investigated prognostic factors of patients who lack a preoperative compound muscle action potential (CMAP) of the abductor pollicis brevis (APB) muscle to determine the necessity for single‐stage opponensplasty. Methods We retrospectively enrolled 22 hands of 22 CTS patients. Prognostic factors considered were age, diabetes mellitus, the median sensory nerve action potential, distal motor latency of the second lumbrical (2L) CMAP (2L‐DML), and its amplitude (2L‐Amp). Postoperative APB‐CMAP amplitude (post APB‐Amp) at 12 months was used as the outcome measure. Results Only 2L‐DML showed a significant correlation with post APB‐Amp (r = ‐0.56). The contribution of 2L‐Amp was not significant, although 3 hands with absent 2L‐CMAP had a poor electrophysiological recovery. Conclusions Prolonged 2L‐DML and absent 2L‐CMAP seem to be poor prognostic factors. Concurrent opponensplasty may not be necessary in patients with 2L‐DML of 8 ms or less. Muscle Nerve 54 : 427–431, 2016 |
author2 |
Health and Labour Sciences Ministry of Health, Labour and Welfare of Japan |
format |
Article in Journal/Newspaper |
author |
Kamiya, Hisao Kimura, Michio Hoshino, Satoshi Kobayashi, Masahito Sonoo, Masahiro |
spellingShingle |
Kamiya, Hisao Kimura, Michio Hoshino, Satoshi Kobayashi, Masahito Sonoo, Masahiro Prognosis of severe carpal tunnel syndrome with absent compound muscle action potential |
author_facet |
Kamiya, Hisao Kimura, Michio Hoshino, Satoshi Kobayashi, Masahito Sonoo, Masahiro |
author_sort |
Kamiya, Hisao |
title |
Prognosis of severe carpal tunnel syndrome with absent compound muscle action potential |
title_short |
Prognosis of severe carpal tunnel syndrome with absent compound muscle action potential |
title_full |
Prognosis of severe carpal tunnel syndrome with absent compound muscle action potential |
title_fullStr |
Prognosis of severe carpal tunnel syndrome with absent compound muscle action potential |
title_full_unstemmed |
Prognosis of severe carpal tunnel syndrome with absent compound muscle action potential |
title_sort |
prognosis of severe carpal tunnel syndrome with absent compound muscle action potential |
publisher |
Wiley |
publishDate |
2016 |
url |
http://dx.doi.org/10.1002/mus.25004 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fmus.25004 https://onlinelibrary.wiley.com/doi/pdf/10.1002/mus.25004 |
genre |
DML |
genre_facet |
DML |
op_source |
Muscle & Nerve volume 54, issue 3, page 427-431 ISSN 0148-639X 1097-4598 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/mus.25004 |
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54 |
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3 |
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427 |
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431 |
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1800750663952498688 |