Jiménez-Heras María, Rovesti Gian Luca, Nocco Gianluca, Barilli Massimo, Bogoni Paolo, Salas-Herreros Emilio, Armato Matteo, Collivignarelli Francesco, Vegni Federico, Rodríguez-Quiros Jesus
BMC Vet Res. 2014 Sep 20;10:189. doi: 10.1186/s12917-014-0189-4.
Hybrid external fixation (HEF) is an emerging technique for fracture stabilization in veterinary orthopedics, but its use has been reported in few papers in the veterinary literature. The linear and circular elements that form hybrid fixators can be connected in a very high number of combinations, and for this reason just referring to HEF without any classification is often misleading about the actual frame structure. The aim of this study was to retrospectively evaluate fracture stabilization by HEF in 58 client-owned dogs and 8 cats, and to extend the already existing classification for hybrid constructs to include all frame configurations used in this study and potentially applicable in clinical settings. Animal signalment, fracture classification, surgical procedure and frame configuration were recorded. Complications, radiographic, functional and cosmetic results were evaluated at the time of fixator removal.
Sixty-eight fractures in 58 dogs and eight cats were evaluated. Two dogs had bilateral fractures. Fifty-one percent were radio-ulna, 34% tibial, 9% humeral, 3% femoral and 3% scapular fractures. One ring combined with one or two linear elements was the most widely employed configuration in this case series. Radiographic results at the time of frame removal were excellent in 59% of the cases, good in 38% and fair in 3%, while functional and cosmetic results were excellent in 69% of the cases, good in 27% and fair in 4%.
HEF is a useful option for fracture treatment in dogs and cats, particularly for peri and juxta-articular fractures. It can be applied with a minimally invasive approach, allows adjustments during the postoperative period and is a versatile system because of the large variety of combinations that can fit with the specific fracture features. The classification used enables to determine the number of linear and circular elements used in the frame.
混合外固定（HEF）是兽医骨科中用于骨折固定的一种新兴技术，但兽医文献中关于其应用的报道较少。构成混合固定器的线性和环形元件可以通过大量组合方式连接，因此，仅提及混合外固定而不进行任何分类，往往会对实际的框架结构产生误导。本研究的目的是回顾性评估58只家养犬和8只猫采用混合外固定进行骨折固定的情况，并扩展现有的混合结构分类，以涵盖本研究中使用的所有框架配置及其在临床环境中的潜在适用性。记录动物的特征、骨折分类、手术过程和框架配置。在拆除固定器时评估并发症、影像学、功能和外观结果。
对58只犬和8只猫的68处骨折进行了评估。两只犬有双侧骨折。51%为桡尺骨骨折，34%为胫骨骨折，9%为肱骨骨折，3%为股骨骨折，3%为肩胛骨骨折。在本病例系列中，一个环与一个或两个线性元件的组合是使用最广泛的配置。拆除固定器时，59%的病例影像学结果优秀，38%良好，3%一般；而69%的病例功能和外观结果优秀，27%良好，4%一般。
混合外固定是犬猫骨折治疗的一种有效选择，尤其适用于关节周围和近关节骨折。它可以采用微创方法应用，允许在术后进行调整，并且由于有多种组合可适应特定骨折特征，是一个多功能系统。所使用的分类方法能够确定框架中使用的线性和环形元件的数量。
