Gygax Diego, Lischer Christoph, Auer Joerg A
Equine Hospital, University of Zürich, Zürich, Switzerland.
Vet Surg. 2006 Oct;35(7):626-33. doi: 10.1111/j.1532-950X.2006.00200.x.
To compare the precision of computer-assisted surgery with a conventional technique (CV) using a special guiding device for screw insertion into the distal sesamoid bone in horses.
In vitro experimental study.
Cadaveric forelimb specimens.
Insertion of a 3.5 mm cortex screw in lag fashion along the longitudinal axis of intact (non-fractured) distal sesamoid bones was evaluated in 2 groups (8 limbs each): CV and computer-assisted surgery (CAS). For CV, the screw was inserted using a special guiding device and fluoroscopy, whereas for CAS, the screw was inserted using computer-assisted navigation. The accuracy of screw placement was verified by radiography, computed tomography, and specimen dissection.
Surgical precision was better in CAS compared with CV.
CAS improves the accuracy of lateromedial screw insertion, in lag fashion, into the distal sesamoid bone.
The CAS technique should be considered for improved accuracy of screw insertion in fractures of the distal sesamoid bone.
使用一种特殊的导向装置将螺钉插入马的远籽骨，比较计算机辅助手术与传统技术（CV）的精度。
体外实验研究。
尸体前肢标本。
在两组（每组8个肢体）中评估沿完整（未骨折）远籽骨纵轴以拉力螺钉方式插入3.5毫米皮质骨螺钉的情况：CV组和计算机辅助手术（CAS）组。对于CV组，使用特殊导向装置和荧光透视法插入螺钉，而对于CAS组，使用计算机辅助导航插入螺钉。通过X射线摄影、计算机断层扫描和标本解剖来验证螺钉置入的准确性。
与CV组相比，CAS组的手术精度更高。
CAS提高了以拉力螺钉方式从内外侧插入远籽骨的准确性。
在远籽骨骨折时，应考虑使用CAS技术以提高螺钉插入的准确性。
