本研究中的椎体成形术系统包括高粘度PM MA水泥，并使用一种流体静压手件以加强水泥调配和流量控制。
The vertebroplasty system investigated in this study comprises a high viscosity PMMA cement and USES a hydrostatic pressure hand piece for enhanced cement allocation and flow control.
结论：椎弓根钉系统内固定加自体骨植骨椎体成形术安全，效果满意，价格低廉，值得应用。
Conclusion: Surgical Treatment of thoracolumbar fracture with pedicle screw af is safe, effective, less expensive and worth wide application in clinics.
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