...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Neurosurgery >Angled Screw Holes for Anterior Posts and a Frame-positioning Device for Gamma Knife Radiosurgery: Allowing for Better Targeting of Intracranial Lesions
【24h】

Angled Screw Holes for Anterior Posts and a Frame-positioning Device for Gamma Knife Radiosurgery: Allowing for Better Targeting of Intracranial Lesions

机译：前柱的斜角螺丝孔和伽玛刀放射外科手术的框架定位装置：可更好地靶向颅内病变

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

OBJECTIVE: Gamma knife radiosurgcry requires frame positioning so that the Ireal-meni target is as close? to the (.enter of the I'm me and as low as possible lo cover all ol the posterior fossa contents. In this study, we report the use of two devices developed by the senior author (MWM) that facilitate these two crucial objectives in the treatment of intracranial targets using the gamma kniie. METHODS: Custom front posts with threaded screw holes drilled at 5-.10-, and 15-degree angles were created by the manufacturer at our request. A U-shaped metal devic e for frame positioning was designed in-house and fits into the hole at the 100-mm mark on the lateral sides of the l.eksell stereolactic frame base. This allowed the positioning device lo snap securely into the frame for use in positioning. The positioning device was ( onstructed so that the lowest possible frame position would be achieved with each frame application, while-avoiding collisions with the magnetic resonance imaging localizer box. RESULTS: Angled front posts allowed for pin contacts with the cranium anterior and/or superior to the1 superior temporal line despite a lateral or posterior position of the frame. This avoided penetration of the temporal is muscle and reduced discomfort for patients. The U-shaped metal device was used in place of the Velc.ro straps or ear bars routinely used for frame positioning in whic h the distance from the frame1 base to the lop of the head must always be measured to avoid collisions with the locali/er box. During the past 2 years, these devices have1 been used on a daily basis, achieving the desired results. In many cases, their use1 has avoided the1 need for frame repositioning and rescanning for targets that cannot be reached because of inexact frame1 positioning. CONCLUSION: A new design with angled screw holes in the front posts used for gamma knife radiosurgery allows surgeons lo avoid penetration of the temporalis muscle and lo maintain a perpendicular orientation ofihe fixation screw to the outertable of the cra-niurn. They may also prevent mechanical creep caused by the obliquity of pin e onlact v ith the cranium and resulting loss of torque. We also present a simple device that may be useful in frame positioning. The de ice ensures a frame1 position as low as possible without the need for measurement at the time1 of frame positioning.
机译：目的：伽马刀放射外科手术需要框架定位，以便使Ireal-meni目标尽可能近吗？到（我是我的人，并且尽可能低地覆盖所有后颅窝内容。）在这项研究中，我们报告了由资深作者（MWM）开发​​的两种设备的使用，这些设备有助于实现这两个关键目标方法：根据制造商的要求，制造商制作了定制的前柱，这些前柱是按照制造商的要求制作的，这些前柱带有在5-.10-和15度角上钻孔的螺纹孔。框架定位是在内部设计的，可安装在l.eksell立体定向框架基座侧面100毫米标记处的孔中，从而使定位装置可以牢固地卡入框架中以进行定位。 （如此设计，以便每次使用框架时都可以达到最低的框架位置，同时避免与磁共振成像定位器盒发生碰撞。结果：倾斜的前柱允许与颅骨前部和/或颅骨的顶针接触尽管镜架处于侧向或后向位置，但仍能到达上颞线。这样避免了颞肌的穿透并减少了患者的不适感。使用U型金属装置代替通常用于框架定位的Velc.ro皮带或耳杆，必须始终测量从框架1底部到头部垂垂的距离，以免与局部区域/ er box。在过去的两年中，这些设备每天都在使用1，达到了预期的效果。在许多情况下，它们的使用避免了重新定位框架和重新扫描由于框架1定位不准确而无法到达的目标的需求。结论：一种新的设计，在用于伽马刀放射外科手术的前柱上具有成角度的螺孔，使外科医生可以避免颞肌穿透，并保持固定螺钉垂直于颅骨外表。它们还可以防止由于销钉的倾斜与颅骨的倾斜而引起的机械蠕变以及由此引起的扭矩损失。我们还提出了一种可能在帧定位中有用的简单设备。图像可以确保在框架定位时尽可能低的框架1位置，而无需进行测量。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号