Conclusions: The tested plate construct with its polyaxial locking screw mechanism provides a biomechanically sound fixation option for supracondylar femur fractures.
结论：测试所用的可使用多轴固定螺钉的钢板系统，在生物力学方面是股骨髁上骨折的不错的选择。
2
Systematic tests were conducted on specimens of red sandstone under polyaxial compression, and the strength and the deformation characteristics were carefully investigated.
本文用红砂岩试件做了一系列的试验，探讨了在多轴压缩下红砂岩的强度和变形特征。
3
These initial data indicate that posterior occipitocervical fixation using plate-rod-polyaxial screw system is safe and reliable, and satisfactory clinical outcome can be obtained.