改良后路椎体间融合联合骨水泥强化术治疗老年腰椎滑脱症的效果观察
개량후로추체간융합연합골수니강화술치료노년요추활탈증적효과관찰
Outcome of modified posterior lumbar interbody fusion and PMMA augmented pedicle screw instrumentation for lumbar spondylolisis in aged patients
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