公开(公告)号：US20050261701A1

公开(公告)日：2005-11-24

申请号：US11125808

申请日：2005-05-10

申请人： David McGuire ,  Jeffrey Wolchok ,  Steven Hendricks

发明人： David McGuire ,  Jeffrey Wolchok ,  Steven Hendricks

IPC分类号： A61B17/17 ,  A61B17/58

CPC分类号： A61B17/1714 ,  A61B17/1764

摘要： An isometer for determining isometric graft tunnel placement for lateral side surgical augmentation or reconstruction for anterolateral rotatory knee instability. This graft tunnel placement isometry assessment and measurement device is designed to be used with a graft and an extra-articular technique that restores rotatory, lateral, and anterior knee stability when used by itself or in combination with intra-articular ACL reconstruction. The isometer includes an elongated body with a slider rod that slides horizontally within the body and a cannulated fixed stylus attached transversely to the first end of the elongated body. Within that cannulated fixed stylus is a guide pin that slides freely but that can also be fixed using a fixed-stylus set screw. Similarly, a cannulated movable stylus is attached transversely to the first end of the slider rod, and within that cannulated movable stylus is a guide pin that slides freely but that can also be fixed using a movable-stylus set screw. There is a pointer encircling the slider rod that slides with the slider rod, but whose position along the slider rod can also be adjusted manually. To determine rotary knee isometry during knee reconstructive surgery, the guide pins are positioned over previously identified lateral reconstruction tunnel sites. The guide pins are then driven into the bone tunnel sites and the knee put through a full range of motion by flexing and extending the knee while the isometer position is maintained and the pointer movement is monitored. If movement of the pointer is unacceptably large, the guide pins are re-set, re-positioned and re-driven into different pre-identified lateral reconstruction tunnel sites, and pointer movement during full range motion is again monitored until movement is acceptably small.

摘要翻译： 用于确定外侧旋转性膝关节不稳定性的侧面手术增大或重建的等距移植物隧道放置的等长计。 该移植隧道放置等距评估和测量装置被设计成与移植物和关节外技术一起使用，其在自身使用时或与关节内ACL重建组合使用时恢复旋转，外侧和前膝关节的稳定性。 该计时器包括具有滑动杆的细长主体，其在主体内水平滑动，并且插入式固定触针横向于细长主体的第一端附接。 在该插管式固定式触控笔中，可以自由滑动的导向销，但也可以使用固定式触针固定螺丝固定。 类似地，插入式活动触针横向于滑动杆的第一端附接，并且在该插管式活动触针内是可自由滑动的引导销，但是也可以使用活动触针固定螺钉固定。 有一个环绕滑杆的指针，滑杆与滑块一起滑动，但也可以手动调节滑杆的位置。 为了确定膝关节重建手术期间的旋转膝关节等距线，引导针位于先前识别的横向重建隧道位置。 引导销然后被驱动到骨隧道位置，膝盖通过弯曲和伸展膝盖而保持计尺位置并监视指针运动。 如果指针的运动不可接受地大，则引导引脚被重新设置，重新定位并重新驱动到不同的预先确定的横向重建隧道位置，并且在全范围运动期间的指针运动被再次监测，直到运动可接受地较小。

公开(公告)号：US20070239166A1

公开(公告)日：2007-10-11

申请号：US11740607

申请日：2007-04-26

申请人： David McGuire ,  Jeffrey Wolchok ,  Steven Hendricks

发明人： David McGuire ,  Jeffrey Wolchok ,  Steven Hendricks

IPC分类号： A61F5/01

CPC分类号： A61B17/1714 ,  A61B17/1764 ,  A61B2090/061

摘要： An isometer for determining isometric graft tunnel placement for lateral side surgical augmentation or reconstruction for anterolateral or posterior lateral rotary knee instability. This graft tunnel placement isometry assessment and measurement device is designed to be used with a graft and an extra-articular technique that restores rotatory, lateral, and anterior/posterior knee stability when used by itself or in combination with intra-articular ACL/PCL reconstruction. The isometer includes an elongated body with a slider rod that slides horizontally within the body and a cannulated fixed stylus attached transversely to the first end of the elongated body. Within that cannulated fixed stylus is a guide pin that slides freely but that can also be fixed using a fixed-stylus set screw. Similarly, a cannulated movable stylus is attached transversely to the first end of the slider rod, and within that cannulated movable stylus is a guide pin that slides freely but that can also be fixed using a movable-stylus set screw. There is a pointer encircling the slider rod that slides with the slider rod, but whose position along the slider rod can also be adjusted manually. The slider rod may also have a rotatable member that allows each end of the slider rod to rotate relative to the other end. The rotatable member obviates slider rod impingement during operation. To determine rotary knee isometry during knee reconstructive surgery, the guide pins are positioned over previously identified lateral reconstruction tunnel sites. The guide pins are then driven into the bone tunnel sites and the knee put through a full range of motion by flexing and extending the knee while the isometer position is maintained and the pointer movement is monitored. If movement of the pointer is unacceptably large, the guide pins are re-set, re-positioned and re-driven into different pre-identified lateral reconstruction tunnel sites, and pointer movement during full range motion is again monitored until movement is acceptably small.