椎弓根螺钉结合椎间融合术治疗退变性腰椎不稳症的临床研究
추궁근라정결합추간융합술치료퇴변성요추불은증적림상연구
Comparison of treatment effect of degenerative lumbar instability with transpedicular screw fixation combined with the posterior lumbar interbody fusion with cage and conservative treatment
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