Levy W J, York D H
Neurosurgery. 1983 Apr;12(4):422-9. doi: 10.1227/00006123-198304000-00009.
Spinal cord monitoring during operation is of increasing importance in the prevention of injury. However, there is no direct monitor of the motor tracts available. We have reported a system using direct stimulation of the area overlying the motor tract between the intermediolateral sulcus and the dentate ligament in cats. This produces a 100-m/second signal with later components, which is abolished by section of the motor area, but not by section of the dorsal columns or the anterior quadrant of the spinal cord. Such stimulation also produces motor movement when the correct frequency is used. We now report the first application of this technique in humans, in whom we found the same 100-m/second signal, as well as slower components. We were able to elicit distal limb motor movement with stimulation of the motor tract area, but not with stimulation of the dorsal column area. This technique can be used either in open surgical cases or percutaneously and should provide an additional valuable technique for assessing spinal cord function.
手术期间的脊髓监测在预防损伤方面的重要性日益增加。然而，目前尚无直接监测运动束的方法。我们曾报道过一种在猫身上直接刺激中间外侧沟和齿状韧带之间运动束上方区域的系统。这会产生一个速度为100米/秒且带有后续成分的信号，该信号在切断运动区后消失，但在切断脊髓背柱或前象限后不会消失。当使用正确频率时，这种刺激还会引发运动。我们现在报告该技术在人体中的首次应用，我们在人体中发现了相同的100米/秒信号以及较慢的成分。通过刺激运动束区域我们能够诱发远端肢体运动，但刺激背柱区域则不能。该技术既可以用于开放性手术病例，也可以经皮使用，应该会为评估脊髓功能提供一项额外的有价值技术。
