Behera Prateek, Santoshi John A, Geevarughese Nikku M, Meena Umesh Kumar K, Selvanayagam Rajkumar
Orthopaedics, All India Institute of Medical Sciences, Bhopal, IND.
Orthopaedics, Sawai Man Singh Medical College, Jaipur, IND.
Cureus. 2020 Feb 28;12(2):e7130. doi: 10.7759/cureus.7130.
Telescopic nails such as Fassier-Duval (FD) nails have become the standard treatment for stabilizing long bones and correcting deformities in osteogenesis imperfecta (OI). These nails do not require repeat surgery for their replacement when the bones outgrow them. However, they are not completely free from complications. The prohibitive costs of the original implants have led to design modifications being introduced in locally manufactured telescopic nails. While these low-cost devices work well in most cases, they can lead to complications resulting from their design flaws. We present here the complication observed in a locally manufactured telescopic nail with a design similar to the FD nail. The male component of the nail got dislodged from the distal tibial epiphysis, resulting in its proximal migration. We discuss the probable mechanism of this complication and propose possible design changes that can bring down the rates of such incidences.
诸如法西耶 - 杜瓦尔（FD）钉之类的可延长髓内钉已成为治疗成骨不全症（OI）中长骨稳定和矫正畸形的标准方法。当骨骼生长超过这些钉子时，无需再次手术进行更换。然而，它们并非完全没有并发症。原装植入物高昂的成本促使人们对本地生产的可延长髓内钉进行设计改进。虽然这些低成本装置在大多数情况下效果良好，但由于其设计缺陷可能导致并发症。我们在此介绍在一种设计与FD钉相似的本地生产的可延长髓内钉中观察到的并发症。钉子的阳型部件从胫骨远端骨骺脱位，导致其向近端移位。我们讨论了这种并发症的可能机制，并提出了可能降低此类发生率的设计更改建议。
