目的：回顾后外侧与后侧腰椎椎间融合中骨移植物的选择。
Objective. To review the bone graft options that exist for posterolateral and posterior interbody lumbar fusion.
目的：本试验的目的是论证经皮椎体成形术中骨水泥量的安全范围。
Objective. The aim of this study was to demonstrate the safe range of cement volume during percutaneous vertebroplasty.
她在一次骑马事故中摔断了脊梁骨。
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