Conclusion Relief of vascular compression in time could improve the clinical effect.
结论及时解除血管压迫可提高临床治疗效果。
High relief compression degree, the form of the small space more ups and downs so has strong lighting effects, visual effect is good;
高浮雕的压缩程度小，形体的空间起伏比较大因此而具有强烈的光影效果，视觉效果良好；
Mucosal changes showed as parallel tethered relief in 253 lesions, granular in 23 lesions, compression in 20 lesions and diffused change in 62 lesions.
黏膜面表现为梳齿状黏膜纹聚集改变253处，颗粒结节状改变23处，外压性改变20处，弥漫性改变62处。
Conclusions: PVP is a effective min-invasive surgical procedure in the treatment of vertebral compression fractures with low complication and high efficacy for pain relief.
结论：骨水泥pvp创伤小、并发症少，而且止痛疗效显著，是一种微创治疗老年椎体压缩性骨折的有效方法。
When the compression stroke is finished, the longitudinal pressure relief grooves are communicated with the air exhaust hole to release the high pressure.
当压缩行程完成时纵向泄压凹槽与排气孔相通，实现高压被释放的目的。
When the compression stroke is finished, the longitudinal pressure relief grooves are communicated with the air exhaust hole to release the high pressure.
当压缩行程完成时纵向泄压凹槽与排气孔相通，实现高压被释放的目的。
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