Distal femur fractures in adults

Hoskins, Wayne; Bingham, Roger

doi:10.1016/j.mporth.2016.11.002

Cited by 4 publications

(2 citation statements)

References 53 publications

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“…The final criterion for choosing the last model was the analysis with finite elements ( fig. 5) for an abnormal case that illustrates that the implant can fulfill its purpose even in unusual situations [11].…”

Section: Resultsmentioning

confidence: 99%

Researches on the design of customized femoral implant

Leordean

Ciobanu

2019

MATEC Web Conf.

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Innovations in the industry have also proved to be quite impressive in the medical field, where another approach is needed due to the need for personalization. Due to femoral fractures, it is not just enough to stabilize the bone, but also to have the integration of the implant with the host bone. Thisresearch is intended to undertake studies on the redesign of the distal femoral plate. The redesign had been elaborated to increase the number of people who are compatible with this type of femoral plate and also, to improve the physico-mechanical and biological properties toward to a commercial distal femoral plate made of type 316L stainless steel. Within SolidWorks software, a static simulation has been run after there have been defined restraints, external loads, and a mesh. The parameters were similar to those after the implantation. Taking this reason into consideration, the final results will be improved by modifying plate’s material from 316L to titanium alloy Ti6Al7Nb to increase the capability and biocompatibility. Moreover, the geometry of the distal femoral plate changes to decrease theweight and time of osteosynthesis. The final implant is parametrized 3D models that handle all day-to-day activities and has a weight 50% lower than that of the commercial implant.

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Section: Resultsmentioning

confidence: 99%

Researches on the design of customized femoral implant

Leordean

Ciobanu

2019

MATEC Web Conf.

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“…Different designs of bone geometry have shown different results for stress and subsequent deformations. Two-dimensional FE modelling representing the bone-implant structure is based on the assumption that the load is axially symmetrical [21]. Most of the 2D-model studies give satisfactory insight into the behaviour of the bone-implant interface.…”

Section: Introductionmentioning

confidence: 99%

Stability Analysis of Plate—Screw Fixation for Femoral Midshaft Fractures

Basirom,

Daud,

Ijaz

et al. 2023

Materials

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An understanding of the biomechanical characteristics and configuration of flexible and locked plating in order to provide balance stability and flexibility of implant fixation will help to construct and promote fast bone healing. The relationship between applied loading and implantation configuration for best bone healing is still under debate. This study aims to investigate the relationship between implant strength, working length, and interfragmentary strain (εIFM) on implant stability for femoral midshaft transverse fractures. The transverse fracture was fixed with a fragment locking compression plate (LCP) system. Finite element analysis was performed and subsequently characterised based on compression loading (600 N up to 900 N) and screw designs (conventional and locking) with different penetration depths (unicortical and bicortical). Strain theory was used to evaluate the stability of the model. The correlation of screw configuration with screw type shows a unicortical depth for both types (p < 0.01) for 700 N and 800 N loads and (p < 0.05) for configurations 134 and 124. Interfragmentary strain affected only the 600 N load (p < 0.01) for the bicortical conventional type (group BC), and the screw configurations that were influenced were 1234 and 123 (p < 0.05). The low steepness of the slope indicates the least εIFM for the corresponding biomechanical characteristic in good-quality stability. A strain value of ≤2% promotes callus formation and is classified as absolute stability, which is the minimum required value for the induction of callus and the maximum value that allows bony bridging. The outcomes have provided the correlation of screw configuration in femoral midshaft transverse fracture implantation which is important to promote essential primary stability.

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