联合眼前段重建的二期后房型人工晶体植入术

目的 探讨联合重建眼前段结构及二期后房型人工晶体植入的方法及效果。方法 对36例43眼伴有不同程度眼前段结构紊乱的无晶体眼患者，行眼前段重建和后房型人工晶体植入术。眼前段重建包括虹膜粘连松解、瞳孔成形、瞳孔区机化膜切开、前段玻璃体切除术等。结果 均顺利植入后房型人工晶体。随访6～12个月。术后视力≥0．3者36眼，占83．7％；瞳孔圆形者33眼，占76．7％；人工晶体正位者38眼，占88．4％；无严重并发症。结论 在具备良好的手术条件、熟练的显微操作技术下，联合眼前段重建的二期后房型人工晶体植入术可获得满意的效果。     

螺旋CT三维重建及切割软件在诊断颌面部骨折中的应用

目的探讨螺旋CT三维重建及切割软件在诊断颌面部骨折中的应用价值。方法29例颌面部骨折病例,先经螺旋CT扫描,后在工作站上进行三维重建和切割,显示骨折,分析总结二、三维及切割软件在显示骨折方面的效果。结果三维影像在显示浅部颌面部骨折位置,范围,骨碎片移位方面优于二维影像,但在显示深部结构方面不及二维影像;结合使用切割软件可扩大三维重建的应用范围,可同样清楚显示深部的三维结构。结论三维影像可清楚显示颌面部的空间解剖关系,切割软件能扩大三维软件的应用范围,可显示清楚深部结构的三维关系,有重要的临床应用价值。     

螺旋CT三维重建在鼻骨骨折中的临床应用价值

目的：探讨螺旋CT三维成像对鼻骨骨折的诊断价值。方法：应用GE Lightspeed Plus多排螺旋机扫描仪，对46例鼻外伤患者进行鼻骨横断面扫描和三维重建成像，并对检查结果进行分析。结果：46例鼻外伤患者中，9例普通X线侧位平片未发现骨折(19．6％)；CT图像均能清晰显示骨折线，其中单纯鼻骨骨折32例(69.6％)，并发上颌骨额突骨折11例(23．9%)，上颌窦骨折1例，筛窦纸样板骨折3例，鼻中隔断裂1例。结论：螺旋CT三维成像对于诊断鼻骨骨折具有重要的诊断价值。     

村级公共卫生机构与基本健康保障

从农村基本卫生服务供给的角度,讨论重建甘肃省农村村级公共卫生机构的重要性与迫切性,并提出了相关的政策建议。     

Successful treatment of corrosive esophageal strictures after failed esophageal reconstructions with colon and jejunum

Dense and extensive esophageal strictures after caustic agent ingestion require surgical treatment. Colon, stomach and jejunum can be used to reconstruct esophagus. Here, we report an unusual patient with corrosive esophageal stricture who had received unsuccessful esophageal replacements twice at other hospitals. Colon interposition had been first performed 6 months after corrosive esophageal burn, but the colon graft necrosis occurred. Esophageal reconstruction had been carried out 10 years later in another hospital. However, the graft necrosis developed again 5 months later. A salvage operation was performed to remove the necrotic transplant in our hospital. Then as much food as possible had been given to expand the stomach through the gastrostomy since the procedure. The patient underwent esophagecto-my and concomitant gastroesophagostomy in the neck 1. 5 years later. Esophageal dilations had been performed to prevent recurrent anastomotic stricture for 1 year. He has eaten a normal diet since being discharged.     

原位肝移植肝动脉和门静脉的重建

目的：总结同种异体原位肝移植术中肝动脉和门静脉吻合的经验。方法：回顾性分析9例原住肝移植术中影响肝动脉和门静脉吻合的因素和处理技巧。结果：5例行供、受者肝固有动脉端端吻合，2例供者肝总动脉与受者肝固有动脉吻合，2例供者肝总动脉与受者脾动脉吻合；8例采用门静脉端端吻合，1例因受者门静脉主干长段闭塞，取栓无法再通，将供肝门静脉与受省下腔静脉吻合。术后彩色多普勒超声监测显示动脉和门静脉血流通畅，均未发现有血栓形成或狭窄，现存活6例。结论：合理选择吻合用血管是避免术后发生血栓形成和狭窄的关键。     

超声眼球图像的计算机三维重建方法

介绍了在二维超声眼球切片中定位信息的提取方法，根据眼球切片间的相关性调整切片间的相对位置，并且采用基于弹性匹配插值算法在切片问进行匹配插值，然后采用基于体数据重建的光线投影算法进行三维重建。     

前交叉韧带重建术后短期内移植体黏性变化

目的 研究前交叉韧带重建(anterior cruciate ligament reconstruction, ACLR)术后短时间内移植体黏性的变化规律。方法 选择6只雄性新西兰兔,以跟腱为移植体制作单侧膝关节ACLR动物模型。ACLR术后15 d将实验兔安乐死,取出移植体、健康的前交叉韧带(anterior cruciate ligament, ACL)和跟腱。测量移植体的截面积,分别进行0.1、1 MPa平衡条件的蠕变实验,并计算黏性系数,总结移植体的黏性变化规律,与健康ACL进行对比。结果 移植体的截面积在手术后15 d内缓慢上升。ACL与移植体的黏性呈非线性变化。在不同应力下,黏性系数有较大差异。移植体黏性系数随ACLR术后时间呈下降趋势,但在低应力下更明显。结论 本文建议,ACLR术后早期康复过程中,应使用助行器,降低步频,并避免踢、踹等对关节冲击的运动。     

Fibrin glue assisted amniotic membrane graft reconstruction of conjunctival fornix and canthus following excision of conjunctival tumours

Conjunctival tumors involving non-limbal locations, such as the fornix and canthus, are typically excised using a “non-touch” technique, often with a wide surgical margin. Reconstruction of these large defects can be difficult due to the contour of the ocular surface and are often complicated by shortening of the fornix, symblepharon formation, and restriction of eye movements. In our experience, the use of amniotic membrane grafts combined with the sealant properties of fibrin glue such as Tisseel® has improved our surgical outcomes during the reconstruction phase. We would like to highlight and describe our surgical technique using fibrin glue and squint hooks to aid amniotic membrane graft reconstruction for surgically challenging locations in the fornix and canthus following excision of conjunctival lesions, with excellent surgical outcomes.     

应用相位测量轮廓技术重建面部睁眼三维数字化模型

目的：建立活体睁眼状态下的面部三维数字化模型,为颌面缺损的仿真修复奠定基础。方法：采用3D CaMaga人体三维彩色数字化系统对面部进行活体测量,获得三维点云数据,运用CloudForm反求工程软件对数据进行处理后,转化为相应的数字化文件格式,在Geomagic实体构造软件中重建面部三维数字化模型。结果：成功建立了面部睁眼状态下的三维数字化模型。结论：应用相位测量轮廓术可快速准确安全的重建真实的面部三维形态,该方法在颜面赝复、口腔颌面外科、正畸科、整形外科都将有广阔的应用前景。