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find Keyword "纤维蛋白封闭剂" 2 results
  • 椎板回植及纤维蛋白封闭剂在椎管内肿瘤治疗中的应用

    【摘 要】 目的 介绍在治疗原发椎管内肿瘤时联合应用椎板棘突回植及纤维蛋白封闭剂的手术方法,并评价其疗效。 方法 2003 年6 月- 2005 年12 月,采用椎板棘突回植术及纤维蛋白封闭剂治疗椎管内肿瘤16 例,男7 例,女9 例;年龄26 ~ 55 岁。病程1 个月~ 2 年。肿瘤位于胸段8 例,胸腰段3 例,腰段5 例。主要表现为腰背部疼痛及下肢不全瘫。所有患者均行MRI 检查为椎管内髓外硬脊膜内占位性病变。其中单发神经鞘瘤9 例,脊膜瘤5 例,多发神经鞘瘤、胶质瘤各1例。 结果 手术过程顺利,无术中并发症。术后行X 线及CT 检查,复合体回植物位置良好,无螺钉突破椎板压迫硬脊膜。术后全部获12 ~ 42 个月随访,疼痛及瘫痪程度明显改善,恢复了生活及工作能力。3 例患者复查MRI 示硬脊膜结构清晰,无明显粘连及压迫征象。14 例患者复查CT 未见骨不愈合及回植的复合体移入椎管,椎板内侧缘骨质未因过度增生而对硬脊膜产生新的压迫。 结论 在行椎管内肿瘤摘除术的同时联合应用纤维蛋白封闭剂及椎板棘突回植术可维持脊柱的稳定性,保持椎管的完整性,避免继发性椎管狭窄的发生,提高手术效果。

    Release date:2016-09-01 09:09 Export PDF Favorites Scan
  • CONDUCTION OF INJECTABLE CARTILAGE USING FIBRIN SEALANT AND HUMAN BONE MARROW MESENCHYMAL STEM CELLS IN VIVO

    Objective To investigate the feasibility of the complex of the fibrin sealant (FS) and the bone marrow mesenchymal stem cells(MSCs) to createanew cartilage in the nude mice by the issue engineering technique. Methods T he MSCs were isolated from healthy humans and were expanded in vitro. And then the MSCs were induced by the defined medium containing the transforming growth factor β1 (TGF-β1), dexamethasone, and ascorbic acid. The biomechanical properties of the chondrocytes were investigated at 7 and 14 days. The MSCs induced for 7days were collected and mixed with FS. Then, the FSMSCs mixture was injectedby a needle into the dorsum of the nude mice in the experimental group. In the tw o control groups, only FS or MSCs were injected respectively. The specimens were harvested at 6 and 12 weeks,and the ability of chondrogenesis in vivo was inve stigated by the gross observation, HE, Alcian Blue staining, and type Ⅱ collagen immunohistochemistry. Results The MSCs changed from a spindlel ike fibroblastic appearance to a polygonal shape when transferred to the defined medium, and couldbe induced to express the chondrocyte matrix. After an injection of the mixture , the cartilage-like tissue mass was formed, and the specimens were harvested from the mass at 6 and 12 weeks in the experimental group. The tissue mass at 6 we eks was smaller and relatively firm in texture, which had a distinct lacuna structure. And glycosaminoglycan (GAG) and Type II Collagen expressions were detecte d. The tissue mass at 12 weeks was bigger, firmer and glossier with the mature c hondrocytes lying in the lacuna structure. The positive Alcian blue and Collagen II immunohistochemistry stainings were ber at 12 weeks than at 6 weeks. But there was no cartilage-like tissue mass formed in the two control groups. Conclusion This study demonstrates that the fibrin sealant and the bone marrow mesenchymal stem cells can be successfully used in a constructing technique for the tissue engineered injectable cartilage.

    Release date:2016-09-01 09:25 Export PDF Favorites Scan
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