Yet there cannot be even a millimeter of deviation, or you will damage the spinal cord, which is as fragile as a piece of tofu. "For most spinal surgery you can be guided by X-rays, but for patients with severe deformations, the nerves and blood vessels are also abnormally twisted. So you can't rely on the help of technology, you have to go by feel," stresses Dr. Chang.
「一般正常的脊椎手術可以使用 X 光透視導引，但嚴重畸形的病患，由於脊椎極度變形，導致其中的神經和血管也不規則扭曲，因此無法靠科技工具輔助，只能靠手感當場操作，」張國華強調。