Academic Journal

Determining C5, C6 and C7 myotomes through comparative analyses of clinical, MRI and EMG findings in cervical radiculopathy

التفاصيل البيبلوغرافية
العنوان: Determining C5, C6 and C7 myotomes through comparative analyses of clinical, MRI and EMG findings in cervical radiculopathy
المؤلفون: Yuichi Furukawa, Yosuke Miyaji, Akiko Kadoya, Hisao Kamiya, Takashi Chiba, Kei-ichi Hokkoku, Yuki Hatanaka, Ichiro Imafuku, Kota Miyoshi, Masahiro Sonoo
المصدر: Clinical Neurophysiology Practice, Vol 6, Iss , Pp 88-92 (2021)
بيانات النشر: Elsevier, 2021.
سنة النشر: 2021
المجموعة: LCC:Neurosciences. Biological psychiatry. Neuropsychiatry
مصطلحات موضوعية: Myotome, Cervical spondylotic radiculopathy, Brachioradialis, Pronator teres, Extensor carpi radialis longus, Extensor carpi radialis brevis, Neurosciences. Biological psychiatry. Neuropsychiatry, RC321-571
الوصف: Objective: There are many myotome charts in the literature, but few studies have presented actual data to support their identification. We aimed to determine C5/C6/C7 myotomes based on clinical and EMG data of patients with cervical spondylotic radiculopathy (CSR) having a single-root lesion confirmed by MRI. Methods: Medical Research Council (MRC) scores and EMG findings were retrospectively reviewed for patients enrolled from our EMG database. Results: Enrolled were 25 patients (10 C5, 6 C6, and 9 C7 CSR). In C5 CSR, weakness or denervation potentials in EMG, or both, were observed in the deltoid (Del) and infraspinatus (Isp) muscles for all patients, and in the biceps brachii (BB) and brachioradialis (BR) muscles for 9/10 and 8/9 patients, respectively. In C6 CSR, weakness of the wrist extensor and/or denervation of the extensor carpi radialis longus (ECRL)/extensor carpi radialis brevis (ECRB), and those of the pronator teres (PT) were observed for all patients. Weakness was not observed for any other muscle in C6 CSR. Denervation potentials of ECRL were found in 5/8 and 3/5 patients with C5 and C6 CSR, respectively, whereas those of ECRB were found in 1/5, 6/6, and 2/5 patients with C5, C6 and C7 CSR, respectively. In C7 CSR, weakness/denervation of the triceps brachii (TB) and denervation potentials of the flexor carpi radialis (FCR) were observed for all patients. Denervation potentials in PT and weakness/denervation of the extensor digitorum (ED) were observed in 2/9 and 4/9 patients, respectively. Conclusion: Suggested dominant myotomes are: C5 for the Del, Isp, BB, and BR, C5/6 for the ECRL, C6 > C7 for the ECRB and PT, and C7 for the TB and FCR. Significance: The current study identified dominant myotomes that differ from the existing literature.
نوع الوثيقة: article
وصف الملف: electronic resource
اللغة: English
تدمد: 2467-981X
Relation: http://www.sciencedirect.com/science/article/pii/S2467981X21000068; https://doaj.org/toc/2467-981X
DOI: 10.1016/j.cnp.2021.02.002
URL الوصول: https://doaj.org/article/fed7439bbd7445959a196e9308d19e79
رقم الانضمام: edsdoj.fed7439bbd7445959a196e9308d19e79
قاعدة البيانات: Directory of Open Access Journals
الوصف
تدمد:2467981X
DOI:10.1016/j.cnp.2021.02.002