The dynamic locking blade plate, a new implant for intracapsular hip fractures: biomechanical comparison with the sliding hip screw and Twin Hook

Injury
W H RoerdinkA D P van Walsum

Abstract

Internal fixation of intracapsular hip fractures results in a high failure rate with non-union and avascular necrosis being the two most important complications. In order to prevent these possible complications treatment should consist of an anatomical reduction and stable fixation by insertion of a low volume, dynamic implant, providing angular and rotational stability to the femoral head. According to these principles a new implant, the dynamic locking blade plate (DLBP) was designed for the fixation of intracapsular hip fractures. We performed a biomechanical analysis in synthetic bone to compare the rotational stability and cut out resistance of the DLBP with a conventional sliding hip screw (SHS) and the more recently developed Twin Hook. The rotational stability of the DLBP proved to be three times higher than the rotational stability of a SHS and two times higher than the Twin Hook. There was no major difference in cut out resistance between the different implants. The design of the DLBP and possible advantages with regard to the healing of an intracapsular hip fracture are discussed.

References

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Sep 8, 2004·Injury·Humayon PervezSarah Vowler
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Citations

Jun 4, 2015·Acta Orthopaedica. Supplementum·Trude Basso
May 11, 2013·Nigerian Medical Journal : Journal of the Nigeria Medical Association·Imran Haruna Abdulkareem
Oct 26, 2010·Injury·Nikolaos K Kanakaris, Peter V Giannoudis
Apr 17, 2016·European Journal of Trauma and Emergency Surgery : Official Publication of the European Trauma Society·A D P van WalsumW H Roerdink
Oct 27, 2015·Journal of medical and biological engineering·Shabnam SamsamiGholamreza Rouhi
Apr 23, 2011·The Journal of Bone and Joint Surgery. British Volume·F O'NeillM Walsh
Jun 18, 2019·Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine·Shabnam SamsamiGholamreza Rouhi
Apr 28, 2021·European Journal of Trauma and Emergency Surgery : Official Publication of the European Trauma Society·Jorn KalsbeekInger Schipper

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