Aiello I, Patraskakis S, Sau G F, Zirattu G, Bissakou M, Patta G, Traccis S
Neurological clinic and orthopedic clinic, University of Sassari, Italy.
Electromyogr Clin Neurophysiol. 1990 Feb-Mar;30(2):73-6.
The sensibility of F-wave in detecting lumbosacral radicular compression has been found to range from 65% to 18%. The present study was performed on 24 patients suffering from unilateral L5 compressive radiculopathy. The aim was to verify the reliability of extensor digitorum brevis (EDB) F-wave in the diagnosis of L5 root impairment, by using different parameters such as minimal, mean, maximal latency and the difference of these parameters between the affected and unaffected sides. In all patients conventional needle EMG was also performed bilaterally. While the needle EMG showed abnormalities in L5 innervated muscles of all patients, at least one of the different EDB F-wave parameters was found to be abnormal in only 7 patients (29.2%). Moreover no significant relation was observed between the severity of EMG and F-wave abnormalities. We conclude that conventional needle EMG appears to be the most useful electrophysiological technique in the diagnosis of L5 compressive radiculopathy, while EDB F-wave does not provide additional information.
已发现F波检测腰骶神经根受压的敏感度在65%至18%之间。本研究对24例单侧L5压迫性神经根病患者进行。目的是通过使用不同参数，如最小、平均、最大潜伏期以及患侧与未患侧这些参数的差值，验证趾短伸肌（EDB）F波在诊断L5神经根损伤中的可靠性。所有患者均双侧进行了传统针极肌电图检查。虽然针极肌电图显示所有患者L5支配的肌肉均有异常，但仅7例患者（29.2%）发现至少一项不同的EDB F波参数异常。此外，未观察到肌电图和F波异常严重程度之间的显著关系。我们得出结论，传统针极肌电图似乎是诊断L5压迫性神经根病最有用的电生理技术，而EDB F波不能提供额外信息。
