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膝关节镜检查是诊断膝关节损伤和疾病的先进手段。作者等1982.7.~1985.7.共检查70例。根据实践体会,现对有关问题作初步探讨。 相似文献
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拇指在手部功能中占有很重要的地位,一旦缺损,即使是部分缺损,对工作及生活也会带来困难。因此对拇指外伤应尽量予以修复。 对拇指外伤并有复合软组织缺损者的处理一般有以下几种方式;如缺损在近节指间关节以远的平面,多采用修整残端直接缝合,保留一个无痛的残端,拇指的功能大部分可以保存;对于近节指间关节近侧的损伤并有复合软组织缺损或有骨质、肌腱外露者,为了保留拇 相似文献
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The repairing capacities of bone matrix gelatin(BMG),decalcified bonematrix(DBM)and deep frozen bone(DFB)were tested in experimental defects onskulls of rats.The healing of defects were judged by roentgenographic,histological and atomic absorption spectrophotometric methods.The healing ofdefects was most effective with BMG(P<0.01),and DMB came next while thecapability of bone induction was very weak in DFB.In the BMG and DBMgroups,skull defects were completely healed in 12 weeks after the operation,but inthe DFB group healing was incomplete.The control group failed to healspontaneously.The results suggest that during the process of resorption of BMGand DBM,bone morphogenetic protein(BMP)was released by diffusion,whichinduced mesenchymal cells originating from the dura mater to differentiate intochondrocytes and osteobIasts,resulting in formation of new bone.The inducedosteogenesis is considered to be a complex process regulated not only by BMP butalso by various systemic and local growth factors. 相似文献
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微量元素与骨科的应用 总被引:4,自引:0,他引:4
<正> 对微量元素的研究是七十年代方兴的新学科,尤其在医学上的研究仅为开端,在骨科方面的认识更少。目前公认人体必需的微量元素有十四种,分别是铁(Fe)碘(I)、锌(Zn)铜(Cu)、锰(Mn)、铬(Cr)、钼(Mo)、钴(Co)、硒(Se)、镍(Ni)、钒(V)、氟(F)、锶(Sr)、锡(Sn)等。这些元素对人体结构、生长和发育是必不可少的。如儿童缺锌、铁、铜镁等元素,可影响骨、软骨的生成发育障碍以及血液、神经系统 相似文献