Mechanical design and analysis of a novel fixation device for human bone fractures

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2016

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Yenigün, Çağrı

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Fixation of bone fractures over a desired time period is one of the most important requirement for their healing processes. Fracture fixation devices are designed to satisfy particular requirements for different types of bone fractures. Conventional and locking plates, intramedullary rods and screws of trauma surgery, and polyaxial screws, connectors and rods of spinal surgery are the examples of contemporary implants for varying bones and their fractures. The mentioned fixation system is inspired from spinal implants and contains multi-axial screws, adjustable rod connectors and rods to combine the known advantages and reduce disadvantages of known systems used in shaft fractures of trauma surgery. The aim of this thesis is to design and prototype an internal fixation system that is anatomically suitable for intended area application, minimizing periosteum damage, allowing multi-axial screws and multi-planar application for traumatic and osteotomic applications, as a part of an interdisciplinary project. For this purpose, several preliminary models and resulting final models are designed, and the critical points of conceptual and final models are evaluated by analytical methods. Consequently, mechanical tests are conducted to assess the performance of the final design, and results of these tests compared with analytical estimations. Finally, suitable areas of application in orthopaedics are concluded based on the assessments.

Subject Keywords

Fracture fixation., Internal fixation in fractures., Bones, Orthopedic implants., Implants, Artificial., Biomedical materials.

URI

http://etd.lib.metu.edu.tr/upload/12619728/index.pdf
https://hdl.handle.net/11511/25430

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Graduate School of Natural and Applied Sciences, Thesis

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Citation Formats

Ç. Yenigün, “Mechanical design and analysis of a novel fixation device for human bone fractures,” M.S. - Master of Science, Middle East Technical University, 2016.