牵伸术

Using the following methods to treat one patient of congenital absence of the tibia with fork-shaped lower femur, the caput fibulae forming unstable knee joint, and concomitant knee flexion 95 degree.

方法1例先天性右胫骨完全缺如，股骨下端呈叉状，腓骨头与股骨下端形成不稳定的膝关节，伴屈膝畸形95 ，于1岁半实施股骨下端修整术，5岁和8岁时分两期安装Ilizarov膝关节牵伸器，牵拉矫正屈膝畸形达到伸膝0 位，使腓骨头与股骨下端成膝关节，拆牵伸器后装配能稳定膝关节的下肢补高矫形器行走。

Method］from january 2003 to may 2006,32 patients were corrected with qin si-he's orthotics devices on the ilizarov principle of tension-stress,which involved 15 males and 17 females,the age ranged from 10 to 25 years.among these patients,2 were caused by peroneal nerve injury,l by tumor in the vertebral canal,5 by meningocele,11 were caused by poliomyelitis,13 by congenital talipes equino-varus.in accordance with deformities,external fixator and limitied operative methods were dertermined.the limited release of soft tissue were performed in 7 patients,limited osteotomy in 25 patients.the dynamic muscle balance operation were performed in 9 patients with imbalance of muscle strength.according to the ilizarov technique,the fixative rods were installed.the telescopic rods on the apparatus were rotated one week after the operation,the divices had corrective function in three-dimensional directions.the deformity of talipes equinovarus,internal rotation and drooping of the forefoot were gradually corrected,and the patients could bear weight and walked on the deformed foot.the mean duration of traction were 42 days,then removed the external fixator maintained with plaster for a site time.

方法］2003年1月～2006年5月，根据ilizarov张力应力法则，应用秦泗河改良的外固定矫形器，遵循ilizarov穿针固定的基本原则，共手术治疗马蹄内翻足32例，男15例，女17例；年龄10～25岁，平均17岁。病因：腓总神经损伤2例，腰椎管内肿瘤1例，硬脊膜膨出5例，小儿麻痹后遗症11例，先天性马蹄内翻足13例。术前用足掌的前外缘负重行走者11例，用足的外缘或足背外侧负重者21例。根据马蹄内翻足畸形程度、性质和患者年龄，确定实施有限矫形手术的方法和外固定矫形器治疗。本组7例同期实施有限的软组织松解术，25例同期实施了有限的截骨术和跗骨间关节融合术，9例合并踝关节内外翻肌力明显失衡者，同期行足部肌腱转移的肌力平衡术。然后安装外固定矫形器。术后按作者制定的管理程序，7 d开始旋转相应的螺纹牵拉杆，对器械进行三维空间的缓慢调整，先矫正前足内收和后足内翻，后矫正足下垂畸形，直至达到矫形要求的标准。在矫形的过程中定期进行x线检测，以防止发生踝关节前后移位，治疗期间允许患足负重行走。术后平均牵伸42 d，拆外固定器后患足再上石膏固定适当时间。

He main purpose of trapeziometacarpal distraction arthroplasty is to avoid trapeziectomy, thereby leaving the length and stability of the base of the thumb intact and saving surgical and rehabilitative time.

M牵伸关节成形术的主要目的是避免大多角骨切除术，因此可以使拇指的力量和基底的稳定性得以最大程度的保留，节省外科手术和康复的时间。

Results Nerves radials lead along to pull wounded patients go through acupuncture etc.treatment Among them3regular functions were resumed,the4regular damage paˉtients of nervous radials stretches finger with wrist to stretch in whom function reconstruction was well,36casesof peˉripheric nerve damages are restored by the method of microsurgery,and fine outcome reach86%.

结果 桡神经牵拉伤病人经针灸等治疗有3例功能恢复，4例桡神经损伤病人采用腕伸指伸功能重建术，余36例医源性周围神经损伤经显微外科方法修复，优良率达86%。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。