Biomechanical Evaluation Method to Optimize External Fixator Configuration in Long Bone Fractures—Conceptual Model and Experimental Validation Using Pilot Study
| Autor: | Charitha Weerasinghe, Pujitha Silva, Thiran Sellahewa |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Technology
External fixator Computer science QH301-705.5 media_common.quotation_subject medicine.medical_treatment Computation QC1-999 Stability (learning theory) biomechanics External fixation long bone fractures external fixation Evaluation methods medicine General Materials Science Biology (General) Instrumentation QD1-999 Simulation media_common Fluid Flow and Transfer Processes Process Chemistry and Technology Physics General Engineering Biomechanics stability Engineering (General). Civil engineering (General) fracture healing Finite element method Computer Science Applications Chemistry mechanical testing Conceptual model TA1-2040 |
| Zdroj: | Applied Sciences, Vol 11, Iss 8481, p 8481 (2021) Applied Sciences Volume 11 Issue 18 |
| ISSN: | 2076-3417 |
| Popis: | External fixation is a commonly used method in stabilizing fracture sites. The performance of the fixator depends on how it affects the mechanical properties of the fracture site and is governed by parameters like the fixator type and fixator configuration. Identifying ideal configurations prior to surgery will help surgeons in planning the procedure, limiting the possibility of complications such as non-union. In this study, a framework has been proposed as a surgical pre-planning tool, to assist surgeons compare mechanical properties of a fracture site under different fixator configurations, and thereby identify the optimum solution. A computational tool was identified as the best method for this purpose. Cost and time of computation were given special consideration to reduce complexity in clinical settings. A pilot study was conducted on a section of the proposed framework, where the aim was to understand the feasibility of implementation. In the pilot study, a unilateral uni-planar fixator on a simple diaphyseal transverse fracture was analyzed. During the pilot study the selected fixator was tested and a few models were developed to assess system stability. The models were then compared to identify the optimum model that could be used with the proposed framework. The proposed framework provided a suitable solution for the use case and out of the models developed the simplified finite element model was identified as the best option for the use case. |
| Databáze: | OpenAIRE |
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