查询词典 socket screw

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。

The strew length of prefixed point was 41.84 mm, the screw angle with panes lateralis was 69.41°, the screw angle with inferior verticular plane of panes lateralis was 22.67°; the length of postfixed point was 42.28 mm, the angle with panes lateralis was 68.45°, the angle with inferior verticular plane of panes lateralis was 20.79°. Of the 60 nails drilled, two were drilled out of the post facies articularis of calcaneous, the accuracy rate was 97.67%.

其前点螺钉平均长度为41.84 mm，与跟骨外侧面平均呈69.41°、与跟骨外侧面的底垂面平均呈22.67°；后点螺钉平均长度为42.28 mm，与跟骨外侧面平均呈68.45°、与跟骨外侧面的底垂面平均呈20.79°；30足60枚钢针有2枚钻出跟骨后关节面，钻人安全率为97.67%。

Results: It was found that there were 7 cases of screw loosening or breaking in the internal fixation ,1 case of connecting pole loosening or dropping,3 cases of concurrent infection from internal fixators loosening,4 cases of internal fixation screw entering the spinal canal,being driven into the intervertebral space or going through the vertebra body,5 cases of repeated postoperative lumbar pain,2 cases of postoperative pseudoarthrosis formation,3 cases of the height loss of the vertebra body after the internal fixators was taken out.

结果：内固定螺钉松动或断裂7例，内固定系统中的连接杆松动或退出1例，内固定松动合并感染3例，内固定螺钉进入椎管或打入椎间隙者或穿破椎体者4例，术后反复腰痛者5例，术后假关节形成2例，内固定取出后椎体高度丢失3例。

Of the femoral fracture,there were 14 cases of fractures of shafts of femurs and 1 case of supracondylar fracture of femur;11 male, 4 female;7 left cases,8 right cases;1 case complicated with bending of bone plate and screw,6 cases with breakages of plate;1 case with bending of common intramedullary nail,2 cases with breakages of common intramedullary nails,1 case of screw and wire lock fixation complicated with pseudoarticulation formation,4 cases with nonunion of fracture.

方法］24例长骨骨折内固定手术失败应用有限切开交锁髓内钉治疗的长骨骨折翻修术病例中，股骨15例，其中股骨干骨折14例，股骨髁上骨折1例；男11例，女4例；左侧7例，右侧8例；接骨板螺丝钉折弯1例，断裂6例，普通髓内钉折弯1例，折断2例，螺钉并钢丝固定假关节形成1例，骨折不愈合4例。

In chapter 5, using the VB, SQL server 2000 and reformative Genetic algorithm, the Screw optimized design system is designed. And the Screw optimized design system is given.

第五章，利用VB开发工具、SQL server2000数据库技术和改进的遗传算法实现了注塑机螺杆参数优化设计系统，并给出了其应用实例。

When dripping from bleed screw stops and gauge stabilizes, record the differential pressure and retighten bleed screw.

Step 6 当从排气螺丝的滴漏停止，并且仪表稳定后，记录压差并且重新紧固排气螺丝。

Objective To investigate the effect of posterior pedicle screw instrumentation and determine the impact of alternative surgical strategies to provide guidance for the operation planning. Methods A detailed three-dimensional finite element model of a 40° scoliotic lumbar with pedicle screw instrument were constructed by using the commercial finite element software ANSYS.

目的 通过有限元计算与刚体动力学相结合的方法，模拟后路椎弓根螺钉系统治疗脊柱侧凸的矫形过程，研究矫形过程中的生物力学特性，探讨不同矫形策略对临床结果的影响，为脊柱侧凸的手术规划提供依据。

Conclusion］There are the same correct effectiveness and the biomechanical stability in the treatment with the slidable pedicle screw system and universal pedicle screw system,meanwhile there is no effect in the adolescent growth.

结论］滑动椎弓根钉系统治疗脊柱侧凸同样能够达到通用椎弓根钉系统相同的矫形效果及生物力学稳定性，同时它不影响青少年生长发育。

Fig. 3-5 Fixation with one tibiotalar screw and one talotibial screw.

253：212， 1990。图 3-5 使用一根胫距螺丝钉和一根距胫螺丝钉的融合术

All the patients returned to normal daily life after a mean time of 5.3 months (3 to 11 months) Conclusions Tarsometatarsal joint injuries can be treated well by close reduction and percutaneous screw fixation with less operative lesion and lower incidence of soft tissue complications. Reduction of the middle column with screw insertion along the direction of the Lisfranc ligament is the key to reestablishment of the stability of the tarsometatarsal joint complex.

闭合复位经皮螺钉内固定手术创伤小，软组织并发症低，能有效治疗跖跗关节复合体损伤；中间柱复位并沿Lisfranc韧带方向插入螺钉内固定是重建跖跗关节复合体稳定性的关键。

Foods high in this vitamin include oily fish such as salmon, tuna and, and fish liver oils.

维生素D含量高的食物包括诸如大麻哈鱼、金枪鱼和鲭鱼之类的油鱼以及鱼肝油。

We need you to cosign our public letter demanding that press intimidation cease immediately, and that all charges be dropped.

我们需要您cosign我们的公共信，要求记者立即停止恐吓，并要求所有收费下降。