背景:神经内镜经鼻蝶手术因其微创、显露充分、术后恢复快等特点,已成为前颅底中线及侧颅底占位最常用的手术方式。随着手术范围及适应证也的不断扩展,颅底磨除范围相应增加,这也使术后脑脊液漏发生率也相应增高。严重的脑脊液漏可导致...背景:神经内镜经鼻蝶手术因其微创、显露充分、术后恢复快等特点,已成为前颅底中线及侧颅底占位最常用的手术方式。随着手术范围及适应证也的不断扩展,颅底磨除范围相应增加,这也使术后脑脊液漏发生率也相应增高。严重的脑脊液漏可导致患者致命性的颅内感染及极差的预后。因此在神经内镜手术后,可靠的颅底重建是手术成功的基本条件,文章以此对颅底重建原则、方法、颅底重建应用的不同材料的生物学特性等展开综述。目的:阐述颅底重建的原则方法,总结不同重建材料的研究进展及不同生物学特性在颅底重建中的作用。方法:计算机检索万方及PubMed数据库2012年1月至2022年1月收录的文献,中文检索词为“颅底重建、神经内镜、颅底骨缺损、经鼻蝶手术入路、多重修补、带蒂黏膜瓣、聚醚醚酮、羟基磷灰石”,英文检索词为“Skull base reconstruction,Neuroendoscopy,Skull base bone defect,Transnasal-sphenoidal operative approach,Multiple repair,Pedicled mucosal flap,Polyether-ether-ketone(PEEK),Hydroxylapatite”,最终纳入60篇文献进行综述。结果与结论:(1)神经内镜经鼻蝶术后,即使颅底缺损越来越大,颅底重建的目地依旧是预防脑脊液漏避免严重并发症,目前多层修补是一致认可的修复原则。(2)骨性支撑的类骨材料诸如聚醚醚酮、羟基磷灰石因为价格昂贵且术前准备繁琐,临床应用较少;临床医生多靠类硬膜结构的生物材料及带蒂黏膜瓣完成修补,但受限于修补支撑力弱及黏膜瓣血运情况,少数病患仍有一定概率存在脑脊液漏的风险。(3)因此,术中类硬膜、类骨结构人工生物材料以及带蒂黏膜瓣修补颅底缺损符合恢复颅底的解剖修复,有助于硬膜、骨质结构的再生,这样也使疏水组织-类硬膜结构-类骨结构-黏膜的一体化生物材料研发具有广阔的应用前景。展开更多
Objectives: To describe the versatility of acellular fetal bovine dermal matrix as an alternative to human cadaveric allograft for head and neck reconstructive procedures in children. Study Design: Case series with ch...Objectives: To describe the versatility of acellular fetal bovine dermal matrix as an alternative to human cadaveric allograft for head and neck reconstructive procedures in children. Study Design: Case series with chart review. Methods: A database of pediatric operative procedures was queried for the use of acellular fetal bovine dermal matrix over a 16-month period. Indications for reconstruction were assessed and initial parental and surgeon satisfaction with the product were noted. Results: During the time period of 3/2012 and 7/2013 a total of 8 reconstructive procedures were performed on pediatric patients using acellular fetal bovine dermal matrix. Indications for use varied and included open and transnasal endoscopic repair of encephaloceles and soft tissue reconstructions including lateral pharyngeal wall repair, cleft palate repair, and facial recontouring operations. Acellular fetal bovine dermal matrix had a subjectively increased ease of use as compared to the surgeon’s prior experience with human cadaveric acellular dermis. Every parent vocalized a greater comfort level with the use of a bovine product over the alternative of human cadaveric tissue. The cost of acellular fetal bovine dermal matrix is slightly lower than the cost of human cadaveric acellular dermis. Conclusions: Acellular fetal bovine dermal matrix appears to be an acceptable alternative to human cadaveric acellular dermis for various forms of head and neck soft tissue reconstruction in children. Further prospective studies are warranted to assess for any differences in the long-term efficacy of this product as compared to other forms of allograft reconstruction.展开更多
文摘背景:神经内镜经鼻蝶手术因其微创、显露充分、术后恢复快等特点,已成为前颅底中线及侧颅底占位最常用的手术方式。随着手术范围及适应证也的不断扩展,颅底磨除范围相应增加,这也使术后脑脊液漏发生率也相应增高。严重的脑脊液漏可导致患者致命性的颅内感染及极差的预后。因此在神经内镜手术后,可靠的颅底重建是手术成功的基本条件,文章以此对颅底重建原则、方法、颅底重建应用的不同材料的生物学特性等展开综述。目的:阐述颅底重建的原则方法,总结不同重建材料的研究进展及不同生物学特性在颅底重建中的作用。方法:计算机检索万方及PubMed数据库2012年1月至2022年1月收录的文献,中文检索词为“颅底重建、神经内镜、颅底骨缺损、经鼻蝶手术入路、多重修补、带蒂黏膜瓣、聚醚醚酮、羟基磷灰石”,英文检索词为“Skull base reconstruction,Neuroendoscopy,Skull base bone defect,Transnasal-sphenoidal operative approach,Multiple repair,Pedicled mucosal flap,Polyether-ether-ketone(PEEK),Hydroxylapatite”,最终纳入60篇文献进行综述。结果与结论:(1)神经内镜经鼻蝶术后,即使颅底缺损越来越大,颅底重建的目地依旧是预防脑脊液漏避免严重并发症,目前多层修补是一致认可的修复原则。(2)骨性支撑的类骨材料诸如聚醚醚酮、羟基磷灰石因为价格昂贵且术前准备繁琐,临床应用较少;临床医生多靠类硬膜结构的生物材料及带蒂黏膜瓣完成修补,但受限于修补支撑力弱及黏膜瓣血运情况,少数病患仍有一定概率存在脑脊液漏的风险。(3)因此,术中类硬膜、类骨结构人工生物材料以及带蒂黏膜瓣修补颅底缺损符合恢复颅底的解剖修复,有助于硬膜、骨质结构的再生,这样也使疏水组织-类硬膜结构-类骨结构-黏膜的一体化生物材料研发具有广阔的应用前景。
文摘Objectives: To describe the versatility of acellular fetal bovine dermal matrix as an alternative to human cadaveric allograft for head and neck reconstructive procedures in children. Study Design: Case series with chart review. Methods: A database of pediatric operative procedures was queried for the use of acellular fetal bovine dermal matrix over a 16-month period. Indications for reconstruction were assessed and initial parental and surgeon satisfaction with the product were noted. Results: During the time period of 3/2012 and 7/2013 a total of 8 reconstructive procedures were performed on pediatric patients using acellular fetal bovine dermal matrix. Indications for use varied and included open and transnasal endoscopic repair of encephaloceles and soft tissue reconstructions including lateral pharyngeal wall repair, cleft palate repair, and facial recontouring operations. Acellular fetal bovine dermal matrix had a subjectively increased ease of use as compared to the surgeon’s prior experience with human cadaveric acellular dermis. Every parent vocalized a greater comfort level with the use of a bovine product over the alternative of human cadaveric tissue. The cost of acellular fetal bovine dermal matrix is slightly lower than the cost of human cadaveric acellular dermis. Conclusions: Acellular fetal bovine dermal matrix appears to be an acceptable alternative to human cadaveric acellular dermis for various forms of head and neck soft tissue reconstruction in children. Further prospective studies are warranted to assess for any differences in the long-term efficacy of this product as compared to other forms of allograft reconstruction.
文摘采用生物力学方法,分别测试了新鲜硬脑膜,冻干硬脑膜,医用硅胶和医用涤纶膜作受力和变形关系的力学测试,4种材料的柔度分别为0.6×10^(-7)、0.72×10^(-7)、3.44×10^(-7)和6.89×10^(-7)Pa.颅底缺损的膨出实验,在颅底缺损达3cm,28h后的膨出度为3.16 mm.
