Department of Veterinary Clinical Medicine, College of Veterinary Medicine, University of Illinois, Urbana, Illinois, United States.
WestVet Animal Specialty & Emergency Center, Garden City, Idaho, United States.
Vet Comp Orthop Traumatol. 2022 Sep;35(5):298-304. doi: 10.1055/s-0042-1748880. Epub 2022 Jul 19.
The aim of this study was to describe an arthroscopic-assisted technique for coxofemoral toggle rod placement, and to report on the feasibility, drill tunnel trajectory and accuracy of tunnel aperture location using this method.
Cadaveric pilot study.
Eight coxofemoral joints.
Craniodorsal coxofemoral joint luxations were artificially created. A simulated open hip reduction and stabilization with a toggle rod were performed through a limited arthrotomy under arthroscopic guidance. Computed tomography scans were performed to evaluate drill hole trajectory across the femoral neck, and joints were disarticulated and photographed. Digital imaging software was used to determine the percent overlap of the drill hole apertures relative to the origin and insertion of the round ligament on the acetabulum and fovea.
The exit point of the tunnel was entirely within the fovea capitis in five of eight femurs, three of eight femoral drill apertures were only partially within the target area. Of the eight acetabular bone tunnels examined, all were centred occupying the acetabular fossa.
Coxofemoral toggle rod placement can be performed under arthroscopic guidance through a limited arthrotomy. Comparable femoral tunnel accuracy with the standard open technique should be achieved with the current method prior to its clinical use.
本研究旨在描述一种关节镜辅助下的股髋关节 Toggle 杆放置技术，并报告使用该方法的可行性、钻孔隧道轨迹和隧道开口位置的准确性。
尸体初步研究。
8 个髋关节。
人工造成头侧髋关节脱位。在关节镜引导下通过有限的关节切开术，模拟开放的髋关节复位和 Toggle 杆固定。进行计算机断层扫描以评估穿过股骨颈的钻孔轨迹，并对关节进行解剖和拍照。使用数字成像软件确定相对于髋臼和窝的圆韧带起点和插入点，钻孔开口的重叠百分比。
在 8 根股骨中，有 5 根股骨的隧道出口完全位于股骨头凹内，8 个股骨钻孔中有 3 个仅部分位于目标区域内。在检查的 8 个髋臼骨隧道中，所有隧道均位于髋臼窝内。
可以在关节镜引导下通过有限的关节切开术进行髋关节 Toggle 杆放置。在临床应用之前，当前方法应该可以实现与标准开放技术相当的股骨隧道准确性。
