3Japanese Orthopedic Association. Scoring system for cervical myelopathy[J].J Jpn Orthop Assoc,1994,68:490-503.
4Yamaura I,Kurosa Y,Matuoka T,et al. Anterior fioating method for cervical myelopathy caused by ossification of the posterior longitudinal ligament[J].Clin Orthop,1999,359:27-34.
5Smith MD, Bolesta MJ, Leventhal M, et al.Postoperative cerebrospinal fluid fistula associated with erosion of the dura[J].J Bone Joint Surg, 1992,74-A(2):270-277.