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find Author "孙瑞龙" 2 results
  • Research progress of new multifunctional bone cement in bone tumor therapy

    ObjectiveThe research progress of new multifunctional bone cement in bone tumor therapy in recent years was reviewed, in order to provide help for the future research of anti-tumor bone cement. Methods The related literature on the treatment of bone tumors with new multifunctional bone cement at home and abroad in recent years was extensively reviewed and summarized. Results The new multifunctional bone cements include those with the functions of photothermotherapy, magnetic thermotherapy, chemoradiotherapy, and antibacterial after operation, which are discussed from the aspects of anti-tumor, drug controlled release, and cytotoxicity. Controlled drug release has been achieved in multifunctional bone cements by adjusting heat and pH or incorporating particles such as chitosan oligosaccharides and γ-cyclodextrin. At present, multifunctional bone cement with hyperthermia, radiotherapy, and chemotherapy has effectively inhibited the local recurrence and distant metastasis of bone tumors. Broadening the application of bone cement for photothermal and magnetic thermal therapy to deeper bone tumors, investigating more precise controlled release of drug-loaded bone cement, and introducing nanoparticles with both thermal conversion and intrinsic enzymatic activities into bone cement for synergistic anti-tumor therapy are promising research directions. ConclusionThe new multifunctional bone cement inhibits bone tumor cells, promotes new bone formation in bone defects, and prevents incision infection after tumor resection. Certain progress has been made in anti-tumor, antibacterial, drug-controlled release, and reduction of cytotoxicity. Expanding the deeper application range of the new multifunctional bone cement, verifying the safety in clinical application, and focusing on the individualized treatment of the new multifunctional bone cement are the problems that need to be solved in the future.

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  • 介入辅助外科手术治疗闭合性四肢血管损伤

    目的 探讨介入辅助外科手术在闭合性四肢血管损伤的方法和疗效。方法 1989年8月~2004年4月,应用介入辅助外科手术治疗闭合性四肢血管损伤16例。男12例,女4例;年龄13~57岁。血管损伤部位:腋动脉2例,旋肱前动脉1例,旋肱后动脉4例,肩胛下动脉1例,肱动脉2例,髂动脉1例,股动脉4例,动脉1例。合并颅脑损伤3例,内脏损伤2例,神经损伤2例,骨折脱位8例。血管完全断裂13例,部分断裂2例,血管痉挛1例。9例有血管缺损,缺损范围4~8cm,平均5.8 cm。受伤至就诊时间1~3 h,平均1.5 h。介入手术时间 20~40 min,平均 28 min;血管修复手术时间1~3.5 h,平均1.7 h。结果 术后16例血管损伤肢体均无坏死。2例腋动脉损伤及3例股动脉损伤患者,术后3个月造影复查,血管均通畅。合并骨折者术后16~42周骨折愈合,平均26周。经2~13年随访,1例合并臂丛神经损伤者术后肩关节功能恢复差,余患者功能均满意。结论 介入辅助外科手术能够准确确定闭合性血管损伤的位置,减少手术盲目性,缩短手术时间,减少出血,提高了血管修复的成功率,是治疗闭合性四肢血管损伤的一种有效方法。

    Release date:2016-09-01 09:23 Export PDF Favorites Scan
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