Herszkowicz I, Berić A, Lindblom U
J Neurol Neurosurg Psychiatry. 1986 Sep;49(9):1063-5. doi: 10.1136/jnnp.49.9.1063.
Vibratory perception thresholds were measured by an electromagnetic device applied over the clavicles of 64 patients with spinal cord injuries. Patients with neurological levels of C5 and below had low threshold values (0.63 +/- 0.23 micron of vibration amplitude; mean +/- SD) which were used as reference values. The patients with a neurological level of C1/2 had very high vibratory thresholds bilaterally (above 11.0 micron). Patients with C2/3-3/4 neurological levels also had significantly elevated thresholds (2.56 +/- 2.01 micron), while those with C4-C4/5 levels did not differ significantly from the reference group. The results agree with earlier observations that the C4 segment innervates the clavicle and imply that patients with a lesion at or above C4 may have elevated clavicular vibratory thresholds. It is concluded that vibrametry, a non-invasive technique, is applicable in patients with spinal cord injury and disease, and can be useful for assessment of sensory level and particularly for follow-up of such patients.
通过将一种电磁装置置于64例脊髓损伤患者的锁骨上来测量振动觉阈值。神经损伤平面在C5及以下的患者阈值较低（振动幅度为0.63±0.23微米；均值±标准差），这些值用作参考值。神经损伤平面为C1/2的患者双侧振动觉阈值非常高（高于11.0微米）。神经损伤平面为C2/3 - 3/4的患者阈值也显著升高（2.56±2.01微米），而神经损伤平面为C4 - C4/5的患者与参考组无显著差异。这些结果与早期观察结果一致，即C4节段支配锁骨，这意味着C4及以上节段损伤的患者可能有升高的锁骨振动觉阈值。得出的结论是，振动觉测量法作为一种非侵入性技术，适用于脊髓损伤和疾病患者，并且对感觉平面的评估尤其是对这类患者的随访可能有用。
