Electrophysiologic correlates of weakness in L5/S1 radiculopathy
| Autor: | S N, Scelsa, A R, Berger, S, Herskovitz |
|---|---|
| Rok vydání: | 2001 |
| Předmět: |
Adult
Aged 80 and over Male Motor Neurons Sacrum Lumbar Vertebrae Muscle Weakness Electromyography Electrodiagnosis Neural Conduction Peroneal Nerve Middle Aged Reaction Time Humans Female Spondylitis Ankylosing Tibial Nerve Muscle Skeletal Radiculopathy Intervertebral Disc Displacement Aged Retrospective Studies |
| Zdroj: | Electromyography and clinical neurophysiology. 41(3) |
| ISSN: | 0301-150X |
| Popis: | Management of patients with radiculopathy involves estimating the degree of physiologic and anatomic injury, and weighing that to predict the likely clinical course.To determine whether low distal peroneal and tibial CMAP amplitudes correlate with weakness and fibrillations of functionally relevant muscles in L5/S1 radiculopathy (LSR).We reviewed clinical and electrophysiologic data in 66 consecutive patients with LSR.A significantly greater number of patients with low peroneal CMAP amplitudes had weakness of L5 (p = 0.025) and S1 innervated leg muscles (p0.001). Low tibial CMAP amplitudes were also associated with weakness of S1 innervated muscles (p0.038). The association of low peroneal CMAP amplitudes with weakness persisted when weakness of at least 3 muscles was considered in the analysis for L5 (p0.0001) and S1 (p = 0.014) innervated muscles.Low peroneal and tibial CMAP amplitudes may serve as surrogate measures for segmental weakness of functionally relevant muscles in LSR. |
| Databáze: | OpenAIRE |
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