Hukuda S, Xiang L F, Imai S, Katsuura A, Imanaka T
Department of Orthopaedic Surgery, Shiga University of Medical Science, Japan.
J Spinal Disord. 1996 Jun;9(3):177-86.
It is well known that a narrow spinal canal is frequently associated with cervical spondylotic myelopathy. However, few investigators have studied the relationship between the size of the cervical spinal canal and that of the cervical spinal cord. Moreover, no studies mention the correlation between the size of the vertebral body and that of the spinal canal in the pathogenesis of cervical myelopathy. In the present study, we used computed tomographic myelography to measure the size of the vertebral body, spinal canal, and spinal cord in patients who had classic cervical myelopathy and in control subjects. We found that patients with cervical spondylotic had a narrow spinal canal as well as a slender spinal cord in the cervical region. Moreover, the vertebral body is significantly larger in the myelopathy group than in controls. A large vertebral body is thought to be associated with a large osteophyte and large disc protrusion. We conclude that a large vertebral body is another risk factor for cervical myelopathy, along with a narrow spinal canal.
众所周知，椎管狭窄常与脊髓型颈椎病相关。然而，很少有研究者研究颈椎管大小与颈脊髓大小之间的关系。此外，在脊髓型颈椎病的发病机制中，没有研究提及椎体大小与椎管大小之间的相关性。在本研究中，我们使用计算机断层脊髓造影术测量了患有典型脊髓型颈椎病的患者以及对照受试者的椎体、椎管和脊髓的大小。我们发现，脊髓型颈椎病患者的颈椎管狭窄，且颈段脊髓细长。此外，脊髓病组的椎体明显大于对照组。大椎体被认为与大骨赘和大椎间盘突出有关。我们得出结论，大椎体是脊髓型颈椎病的另一个危险因素，与椎管狭窄并存。
