Guerin S R, Lewis D D, Lanz O I, Stalling J T
Department of Surgery, Faculty of Veterinary Medicine, University College Dublin, Ballsbridge, Ireland.
J Small Anim Pract. 1998 Nov;39(11):525-32. doi: 10.1111/j.1748-5827.1998.tb03699.x.
Highly comminuted supracondylar humeral fractures were stabilised in six large-breed dogs with a modified type I external fixator using a craniomedial acrylic connecting column and an intramedullary pin which was incorporated into the connecting frame. This construct provided sufficient stability to allow satisfactory bone healing in five of the six dogs, while premature removal of the intramedullary pin and external fixator resulted in subsequent refracture of the humerus in the remaining dog. Limb function at the time of final assessment was considered excellent in two dogs, good in three dogs and poor in one dog. The craniomedial acrylic connecting column simplified application of this modified type I(a) configuration to the humerus by reducing the number of clamps required; the acrylic column also facilitated contouring of the craniomedial connecting column to the brachium and was readily extended proximally to engage the intramedullary pin. In addition, the acrylic connecting column allowed placement of intramedullary pins of varying diameter.
对6只大型犬的肱骨髁上高度粉碎性骨折，使用改良I型外固定器进行固定，该外固定器采用颅内侧丙烯酸连接柱和一根纳入连接框架的髓内针。这种结构提供了足够的稳定性，使6只犬中的5只实现了满意的骨愈合，而在其余1只犬中，髓内针和外固定器的过早拆除导致肱骨随后再次骨折。最终评估时，2只犬的肢体功能被认为优秀，3只犬良好，1只犬较差。颅内侧丙烯酸连接柱通过减少所需夹具的数量，简化了这种改良I(a)型结构在肱骨上的应用；丙烯酸柱还便于将颅内侧连接柱与臂部贴合，并且很容易向近端延伸以与髓内针接合。此外，丙烯酸连接柱允许放置不同直径的髓内针。
