Birkholtz F, Ferreira N
a Private Practice, Walk-A-Mile Centre , Pretoria , South Africa ;
b Tumour, Sepsis and Reconstruction Unit, Department of Orthopaedics , Grey's Hospital, University of KwaZulu-Natal , KwaZulu-Natal , South Africa.
J Med Eng Technol. 2016;40(2):52-4. doi: 10.3109/03091902.2015.1126364. Epub 2016 Jan 20.
Circular external fixators, and in particular hexapod circular external fixators, are increasingly being used in orthopaedic traumatology and limb reconstruction. Their ability to provide three dimensional stability throughout the treatment period make these external fixators indispensable in the management of complex reconstructive work. This study has identified a unique mode of failure with the use of Taylor Spatial Frame Fast-Fx struts and termed this complication catastrophic strut collapse. In this article a lab model is used to demonstrate the consequences of catastrophic strut collapse and warn users of the importance of using the ID bands and locking nuts to prevent inadvertent fragment displacement.
环形外固定器,尤其是六足环形外固定器,在创伤骨科和肢体重建中的应用越来越广泛。它们在整个治疗期间提供三维稳定性的能力使这些外固定器在复杂重建工作的管理中不可或缺。本研究发现了使用泰勒空间框架快速固定支柱时一种独特的失效模式,并将这种并发症称为灾难性支柱塌陷。在本文中,使用实验室模型来演示灾难性支柱塌陷的后果,并提醒使用者使用识别带和锁紧螺母以防止意外骨折块移位的重要性。