Britt R H, Ryan T P
Spine (Phila Pa 1976). 1986 May;11(4):348-51. doi: 10.1097/00007632-198605000-00011.
The use of an epidural stimulating spinal electrode has been adapted for recording spinal somatosensory evoked potentials (SSEP) during spinal surgery. This technique utilizes a flexible, 1 mm diameter electrode with four platinum contacts that is easily slipped into the epidural space both rostral and caudal to the exposed surgical field. The flexibility of the electrode assembly ensures against dural penetration. Incoming somatosensory spinal evoked potentials recorded using the lumbosacral electrode are compared with the SSEP recorded above the surgical site (rostral electrode). The spinal SEPs were generally triphasic (thoracic) or polyphasic (lumbosacral) with an amplitude of 5 microV. This system has been used for intraoperative monitoring during 33 major spinal operations. Waveform morphology, as well as the latencies and amplitudes of the component peaks of the spinal SEPs remained relatively constant compared with the cortical SEPs.
硬膜外刺激脊髓电极已被应用于在脊柱手术期间记录脊髓体感诱发电位（SSEP）。该技术使用一种柔性的、直径为1毫米的电极，带有四个铂制触点，可轻松地滑入暴露手术区域头侧和尾侧的硬膜外间隙。电极组件的柔韧性可确保不穿透硬脑膜。使用腰骶电极记录的传入脊髓体感诱发电位与在手术部位上方记录的SSEP（头侧电极）进行比较。脊髓SEP通常为三相（胸段）或多相（腰骶段），振幅为5微伏。该系统已用于33例大型脊柱手术的术中监测。与皮层SEP相比，脊髓SEP的波形形态以及各成分波峰的潜伏期和振幅保持相对恒定。
