Ertekin C, Mutlu R, Sarica Y, Uçkardeşler L
J Neurol Sci. 1980 Dec;48(3):419-33. doi: 10.1016/0022-510x(80)90113-6.
The clinical value and practical application of the lumbosacral evoked electrospinogram (Espg) and somatosensory cerebral evoked potentials (SEP) were investigated in 52 patients with conus medullaris or cauda equina lesions. It was shown that the destruction or compression of the conus/cauda equina region by traumatic fracture and dislocation of upper lumbar vertebrae, by midline herniation of the nucleus pulposus and by tumoral mass, produced significant reduction in amplitude and delay in latency of Espg recorded just above the lesion site, and the SEP behaved in a similar way. The degree of abnormality was found to be in accord with the severity of clinical sensorimotor deficits in the legs. Tumoural compression caused more significant delay in evoked responses than traumatic injury. From the diagnostic point of view, Espg and SEP were useful in showing latent and manifest involvement of the lumbosacral sensory roots and these are discussed in relation to other electrodiagnostic tests.
对52例圆锥或马尾神经损伤患者的腰骶部诱发肌电图（Espg）和体感诱发电位（SEP）的临床价值及实际应用进行了研究。结果表明，上腰椎创伤性骨折和脱位、髓核中线突出及肿瘤肿块对圆锥/马尾神经区域的破坏或压迫，导致在损伤部位上方记录的Espg波幅显著降低、潜伏期延长，SEP表现类似。发现异常程度与腿部临床感觉运动功能缺损的严重程度相符。肿瘤压迫引起的诱发反应延迟比创伤性损伤更显著。从诊断角度来看，Espg和SEP有助于显示腰骶部感觉神经根的潜在和明显受累情况，并与其他电诊断测试进行了相关讨论。
