Abstract:
INTRODUCTION:C8-root impingement by C7/T1 lesions on neuroimaging studies is not consistently observed in C8 radiculopathy. We hypothesized that C7 or T1 root lesions (with a pre- or postfixed plexus) or cervical myelopathy might explain some "C8 radiculopathies" without C8 root compression. METHODS:Retrospective analysis of cervical neuroimaging in 31 consecutive patients with EMG-confirmed C8 radiculopathy. RESULTS:Five patients (16%) had C8-root compression at C7/T1. Of those without C8-root compression, 5 (16%) had C7-root compression at C6/7, one (3%) had T1-root compression at T1/T2, 7 (23%) had cervical cord compression at or above the C6/7 level, 4 (13%) had intramedullary cervical lesions, and 9 (29%) had mild or nonspecific findings. CONCLUSIONS:C8 radiculopathy without C8-root compression may be due to C7-root compression in the setting of a "prefixed" brachial plexus, upper cervical cord compression with vascular compromise of the distal cervical spinal cord ("myelopathic hand"), or intramedullary cervical cord lesions.
journal_name
Muscle Nervejournal_title
Muscle & nerveauthors
Hehir MK,Figueroa JJ,Zynda-Weiss AM,Stanton M,Logigian ELdoi
10.1002/mus.23319subject
Has Abstractpub_date
2012-06-01 00:00:00pages
859-65issue
6eissn
0148-639Xissn
1097-4598journal_volume
45pub_type
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