Gradual distraction with an external fixator is a widely used treatment for severe postburn ankle contracture (SPAC). However, application of external fixators is complex, and conventional two-dimensional (2D) imaging-based surgical planning is not particularly helpful due to a lack of spatial geometry. The purpose of this study was to evaluate the surgical planning process for this procedure with patient-specific three-dimension-printed models (3DPMs). In this study, patients coming from two centers were divided into two cohorts (3DPM group vs. control group) depending on whether a 3DPM was used for preoperative surgical planning. Operation duration, improvement in metatarsal-tibial angle (MTA), range of motion (ROM), the American Orthopedic Foot and Ankle Society (AOFAS) scores, complications, and patient-reported satisfaction were compared between two groups. The 3DPM group had significantly shorter operation duration than the control group ((2.0±0.3) h vs. (3.2± 0.3) h, P<0.01). MTA, ROM, and AOFAS scores between the two groups showed no significant differences pre-operation, after the removal of the external fixator, or at follow-up. Plantigrade feet were achieved and gait was substantially improved in all patients at the final follow-up. Pin-tract infections occurred in two patients (one in each group) during distraction and were treated with wound care and oral antibiotics. Patients in the 3DPM group reported higher satisfaction than those in the control group, owing to better patient-surgeon communication. Surgical planning using patient-specific 3DPMs significantly reduced operation duration and increased patient satisfaction, while providing similar improvements in ankle movement and function compared to traditional surgical planning for the correction of SPAC with external fixators.
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谢友柏 《高等工程教育研究》2006,(4):8-13,18
我是1951年9月进入交通大学（上海）机械系学习的，当时高校还没有进行院系调整。从那时以来，我国高等工程学校教育大致经历了以下6个阶段：1951到1953年，是教师思想改造和院系调整阶段；1954到1956年，是学习苏联和确立新的教学体制阶段；1957到1960年，是反右和大跃进阶段；1961到1965年，是克服经济困难和进一步教学改革阶段；1966到1976年，是文化大革命和恢复教学秩序阶段；1977年至今，是国家转入市场经济体制和学习西方教学模式阶段。 相似文献
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新工科的实施核心之一在于在实践中落实以成果为导向的工程教育新模式。本文以逆向教学设计理论为指导,以上海交通大学机械与动力工程学院"工程学导论"。为平台,从设计层级化的学习目标、开展多样化的学习活动、运用多元化的评价反馈策略三方面出发,构建基于项目式教学的系统化课程设置流程。本研究是一项在系统教学理论指导下、在工程教育实践中应用基于项目式教学法,落实以成果为导向的实践案例。通过案例的演示,本研究对工程教育过程中如何明确教学目标、合理设计教学活动、优化教学方法以及如何有效进行课程评价等各方面提出了有效建议。 相似文献
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地区发展的不均衡问题是中国发展面临的重大问题之一。中央的转移支付制度是解决地区间发展差异的主要政策手段。指出中国现行的转移支付体制对于缩小地区间差异作用很小。在分析了现行转移支付的问题的基础上,对我国各个地区进行综合分类,提出了均衡地方发展的转移支付制度的建议。 相似文献
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Chen Youbai Niu Zehao Jiang Weiqian Tao Ran Lei Yonghong Guo Lingli Zhang Kexue Xia Wensen Song Baoqiang Huang Luyu Zhang Qixu Han Yan 《Journal of Zhejiang University. Science. B》2021,22(10):866-875
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