骨质疏松绵羊腰椎膨胀式椎弓根螺钉与骨水泥强化椎弓根螺钉固定稳定性的动态比较研究
골질소송면양요추팽창식추궁근라정여골수니강화추궁근라정고정은정성적동태비교연구
Biomechanical comparison of expansive pedicle screw and PMMA-augmented pedicle screw in osteoporotic sheep lumbar vertebra
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