2Ho PSP,Yu SW,Seter LA,et al.Ligamentum flavum:appearance on sagittal and coronal MR images[J].Radiology,1988,168(2):496-499.
3Stollman A,Pinto R,Benjamin V,et al.Radiologic imaging of symptomatic ligamentum flavum thicening with and without ossification[J].AJNR,1987,8(3):991-996.
5Yamashita Y,Takahashi M,Matsuno Y,et al.Spina cord compression due to ossification of ligaments:MRI[J].Radiology,1990,175(3):843-848.
6Miyasaka K,Kaneda K,Sato S,et al.Myelopathy due to ossification or calcification of the ligamentum flavum:radiologic and hisologic evaluation[J].ALNR,1983,4(2):629-635.
7Tsuzuki N.Ossification of the posterior longitudinal ligament(OPLL) of the cervicalspine:its incidence and hisopathology[J].Nitidokuihou 1987,32(1):11-22.
9B rown TR,Quinn SF,D'Agostino AN.Deposition of calcium pyrophosphate dihydrate crystals in the ligamentum flavum:evaluation with MR imaging and CT[J].Radiology,1991,178(3):871-876.