Schoenhuber R, Bortolotti P, Malavasi P, Merli G A, Tonelli L
Neurochirurgia (Stuttg). 1984 Jan;27(1):6-7. doi: 10.1055/s-2008-1053713.
In 11 patients suffering from radicular and in some cases also medullary symptoms anterior spinal fusion at 2 or 3 cervical levels was performed. At follow-up radicular pain had disappeared, and no clinical deficits were found with the exception of one previously tetraparetic patient. Neurophysiological studies including needle electromyography, conduction velocity studies and somatosensory evoked potentials showed, however, that denervation potentials persisted frequently in the C7-C8-T1 innervated muscles, while those innervated by the upper cervical roots were normal in all patients. Somatosensory evoked potentials could not detect medullary compression due to "angulation deformity", a frequent complication of multiple spinal body fusion.
11例患有神经根症状且部分病例伴有脊髓症状的患者接受了2或3个颈椎节段的前路脊柱融合术。随访时，神经根性疼痛消失，除1例既往有四肢轻瘫的患者外，未发现临床功能缺损。然而，包括针极肌电图、传导速度研究和体感诱发电位在内的神经生理学研究表明，C7-C8-T1支配的肌肉中常持续存在失神经电位，而所有患者中由颈上段神经根支配的肌肉均正常。体感诱发电位无法检测到因“成角畸形”（多节段椎体融合的常见并发症）导致的脊髓压迫。
