...键词：腰椎，棘突 ，脊间韧带，棘突间撑开器X-STOP，有限元分析 [gap=2009]key word: The lumbar vertebra, the spinous process, between the keel the ligament, the interspinal opens X-STOP, the finite elemen..
The side view oftheuppersurface of thepillow takes theshape of asmoothcurve and the upper surfaceis provided with a groovecapableof holding the spinous processofthe cervical vertebra.