查询词典 pedicle

Primary atrial tumor has obvious characteristic on RT-3DE: All the atrial tumor display the same size of stereoimages as the tumor themselves. There is a clear boundary between the stereoimage of the myxoma and the atrial wall and there exists a short pedicle connecting the atrial myxoma to the atrial wall or the interatrial septum. The body of the atrial myxoma moves to and fro through the atrium and the atrioventricular valve with the contraction and relaxation of the heart with a fixative pedicle. Atrial myxoma leads to relative atrioventricular valve incompetence during systolic phase and relative atrioventricular valve stenosis during diastolic phase, but doesn't result in pathological changes of atrioventricular valve which restore to normal after exsection of the atrial myxoma. Malignant atrial tumor closely and extensively contact with atrial wall without obvious boundary, pedicle and movement with the contraction and relaxation of the heart.

所有心房肿瘤RT-3DE均实时显示与肿瘤大小相同的立体形态图像；心房黏液瘤立体形态图像与心房壁界限明显，都通过一短蒂与房间隔或心房壁相连，瘤体以蒂为固定点随心脏收缩、舒张在心房与房室瓣口之间往返运动；心房黏液瘤收缩期瘤体导致房室瓣相对关闭不全，舒张期瘤体导致房室瓣相对狭窄，但瘤体不引起房室瓣器质性病变，瘤体摘除后房室瓣功能即恢复正常；恶性心房肺瘤立体形态图像与心房壁关系密切，界限不明显，接触范围广泛，无蒂，瘤体不随心脏收缩、舒张运动。

Conclusion. In most cases, the vertebral body shape is hemispherical in the upper part of the pedicle and triangular in the lower part of the pedicle.

大多数的病例，椎弓根上半部的椎体外形为半球形，下半部为三角形。

Six cadavers were prepared for necroscopy, operative procedure of ILIF were simulated on L3-S1, and all related important anatomic structure and their relationship were observed and record. ILIF with transpedicle screw fixation were also performed with cage insertion.3. Twelve fresh frozen bovine lumbar functional spinal units were prepared for biomechanical testing. According to the different treatment order, the specimens were devided into 7 groups, which included: 1intact specimens, 2specimens were treated by left unilateral facetectomy and had homolateral anatomical threaded cages inserted, 3 TLIF with homolateral pedicle screw fixation, 4 TLIF with bilateral pedicle screw fixation, 5 specimens had anatomical threaded cages inserted on the left by intertransverse process approach, 6 ILIF with homolateral pedicle screw fixation, 7 ILIF with bilateral pedicle screw fixation.

方法1、对20名正常志愿者L3-S1节段进行CT增强+三维重建检查，在三维重建图形上测量横突长度、上下横突间距、椎间孔外椎间隙高度及斜径，观查横突间区域血管走形特点并测量血管内径，然后进行统计分析及评价。2、采用福尔马林固定尸体标本六具，模拟ILIF手术对L3-S1节段进行操作，观察横突间区域重要结构的位置和毗邻关系，并模拟同侧椎弓根钉和单枚椎间融合器的置入过程，探讨该术式存在的问题并改进。3、采用小牛脊柱运动节段标本12具，依序进行不同处理后分为以下7组：⑴正常对照组CG⑵左侧小关节切除+椎间融合器植入组(TLIF⑶TLIF附加同侧椎弓根钉固定组；⑷TLIF附加双侧椎弓根钉固定组；⑸左侧横突间入路椎间融合器植入组ILIF⑹ILIF附加同侧椎弓根钉固定组；⑺ILIF附加双侧椎弓根钉固定组。

After dealing with the CT image of pedicle screw with interpolation numberical method, for pedicle screw of gradeⅠ,CT had a positive predictive value of 52.7%, a negative predictive value of 94%.,a sensitivity of 67% and a specificity of 94%; for pedicle screw of gradeⅡ, CT had a positive predictive value of 75%, a negative predictive value of 100%.,a sensitivity of 100% and a specificity of 94%.

结果：采用"低窗位、高窗宽"原则处理CT影像后，CT对于Ⅰ度椎弓根螺钉的敏感度为33%、特异度为87%、阳性预测值为32%、阴性预测值为88%。CT 对于Ⅱ度椎弓根螺钉的敏感度为100%、特异度为88％、阳性预测值为60%、阴性预测值为100%。Kapper值为0.603。

Abstract］ objective to explore the accuracy and safety of safety drillprepared for cervical pedicle screw trajectory.methods fourteen adult cadaver specimens of cervical spine（c3～c7）with intact structures including ligaments and perivertebral muscles were reserved and used.according to the radiographic measurements,safety drill was inserted into cervical pedicle individually.the evaluation of the drill's trajectory was carried out by ct scan and three-dimension reconstruction and autopsy.results one hundred and forty drill's trajectories were made.9 holes failed with a perforation rate of 6.4%.conclusion the safety drill prepared for cervical pedicle screw hole is safe and effective and can be applied and popularized clinically.

目的 探索安全钻头应用于颈椎弓根螺钉孔道钻探的安全性与准确性。方法随机取14具福尔马林浸泡的成人颈椎标本（c3～c7），保留完整的脊柱三柱结构及相关的韧带和椎旁肌，根据影像学测量的进钉点和进钉方向，模拟颈椎后路手术过程。选用安全钻头，进行实际的颈椎弓根螺钉孔道的钻探，将孔道行ct扫描，并斜位三维重建孔道形态，并以肉眼直视观察结果为金标准，评价孔道钻探的成败。结果钻探孔道准确率89.3%（125/140），穿孔率6.4%（9/140）。结论安全钻头应用于颈椎弓根螺钉孔道钻探的安全性与准确性均较高，可以在临床上推广使用。

［Objective］To study the biomechanical stability of slidable pedicle screw system with the comparison of slidable pedicle screw system and universal pedicle screw system in intensity,rigidity and other biomechanical functions.

［目的］对滑动椎弓根钉系统与通用椎弓根钉系统在脊柱侧凸固定强度、刚度和稳定性等方面进行生物力学比较，以测试滑动椎弓根螺钉内固定系统稳定性的生物力学性能。

［Objective］To study the biomechanical stability of slidable pedicle screw system with the comparison of slidable pedicle screw system and universal pedicle screw system in intensity,rigidity and other biomechanical functions.［Method］Twelve spinal specimens of the pig were randomly divided into two groups and the schubweg on the vertebra of T12 were measured in different conditions.In the end the intensity and rigidity of two groups were compared which were computed by the schubweg.

［目的］对滑动椎弓根钉系统与通用椎弓根钉系统在脊柱侧凸固定强度、刚度和稳定性等方面进行生物力学比较，以测试滑动椎弓根螺钉内固定系统稳定性的生物力学性能［方法］采用12具猪新鲜脊柱标本，随机分成两组分别测量不同工况下T12椎体的位移，并计算其强度和刚度进行比较。

Methods To tind the four kinds of methods that deal with the bare wound area on the skin flap pedicle,by reviewing operative methods that hand's skin imperfect is repaired by distant smaller random pattern skin flap（No including nearer fingers skin flap）in the treatment process of hand's injury in the author's hand surgery in the nearer three years,the four kinds of methods are:the pedicle is swed up to tube;Accepted wound skin edge nearly the pedicle and supplying wound skin edge are sewed up;Theskin flap's pedicle injury area is bared,and then bind up by Vaseline gauze;The fourth method is replanting free skin on the pedicle's injury area.

笔者复习了在手外科近3年来，在手外伤患者治疗过程中，应用远位（如胸腹、鱼际侧或另一肢体）微小随意带蒂皮瓣（是指皮瓣宽度在2.0cm以内的小皮瓣）修复手指部皮肤缺损的手术方法，发现在处理皮瓣蒂部处裸露创面上存在着4种不同的方法，这4种方法分别是：将蒂部缝合成管状，将受区蒂部侧皮缘与供区伤口缝合，将皮瓣蒂部创面裸露，用凡士林纱布包扎，第4种方法是在皮瓣蒂部创面上移值游离皮片。

Methods To tind the four kinds of methods that deal with the bare wound area on the skin flap pedicle,by reviewing operative methods that hand's skin imperfect is repaired by distant smaller random pattern skin flap（No including nearer fingers skin flap）in the treatment process of hand's injury in the author's hand surgery in the nearer three years,the four kinds of methods are:the pedicle is swed up to tube;Accepted wound skin edge nearly the pedicle and supplying wound skin edge are sewed up;Theskin flap's pedicle injury area is bared,and then bind up by Vaseline gauze;The fourth method is replanting free skin on the pedicle's injury area.

通过复习笔者所在手外科近3年来，在手外伤患者治疗过程中，应用远位微小随意带蒂皮瓣修复手部皮肤缺损的手术方法，发现在处理皮瓣蒂部处裸露创面上存在着4种不同的方法，这4种方法分别是：将蒂部缝合成管状；将受区蒂部侧皮缘与供区伤口缝合；将皮瓣蒂部创面裸露，用凡士林纱布包扎；第4种方法是在皮瓣蒂部创面上移植游离皮片。

AbstractObjectives1 Correlate bone mineral densityto vertebral compressive strengths.2 Consummate the technique for percutaneous polymethylmethacrylate vertebroplasty and observe the pattern of PMMA imaging distribution.3 Determine the strength and stiffness of osteoporotic with or without vertebroplasty with PMMA bone cement.4 Correlation of BMD,insertion torque and pull-out strengths of pedicle screws.5 Ascertain whether augmentation with PMMA bone cement can enhance pedicle screw fixation in the osteoporotic spine.6 Ascertain whether augmentation pedicle screw fixation with PMMA bone cement can enhance the stability of unstable thoracolurner burst fractures of osteoporotic spine.

目 的1、测试椎体压缩强度，分析强度与骨矿物质密度（bone mineral density，BMD）的相关关系。2、观察经皮椎体成形术后聚甲基丙烯酸甲脂（polymethylme- thacrylate，PMMA）骨水泥在椎体内的形态学分布及影像学表现。3、比较PMMA骨水泥骨质疏松椎体成形术前/后椎体最大抗压力和压缩刚度的变化。4、分析椎体BMD、螺钉最大旅入力矩和最大拔出力三者之间的关系。5、分析PMMA骨水泥强化骨质疏松椎弓根螺钉后的螺钉的最大轴向拔出力和拔出刚度的变化。6、评价PMMA骨水泥强化骨质疏松椎弓根螺钉脊柱内固定对不稳定型胸腰椎损伤的即刻稳定性和反复载荷后的稳定性。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失