造成胸椎管狭窄症的常见病因有胸椎黄韧带骨化( thoracic ossification of ligament flava ) 、后纵韧带骨化( ossification of the posterior longitudinal ligament ) 、胸椎椎体后缘骨内软骨结节( thoracic posteriormarginal intra-osseous cartilaginous node ) 、弥漫性特发性骨肥厚症( diffuse。可以容纳剥离子或薄式椎板咬骨钳的前唇,较为安全,但在胸椎管 ......