Objective To analyze the clinical effects of hollow compression screw internal fixation treating advanced age patients' femoral neck fracture.

目的分析中空加压螺钉内固定治疗高龄股骨颈骨折患者的临床效果。

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Conclusion Solid-compression process could obtain high initial and retention strength PLLA which could fit for the general bone internal fixation.

结论：固态压缩法可获得高初始强度和维持强度的PLLA，满足一般的骨内固定要求。

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AIM: to compare the effects of compression plate and intramedullary nail on angiogenesis in the course of fracture healing, and to explore its characteristics by different internal fixation.

前言：目的：对比加压钢板(CP)与髓内钉(IN)固定下骨折愈合过程的血管形成，探讨不同内固定下骨折愈合血管形成的特点。

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