Abstract
In these days of rapid industrialization and globalization, skeletal fractures due to traffic and railroad accidents, indoor accidents due to highly polished modern floor surfaces, and competitive sports-related injuries are increasing at a rapid rate. There are two principal methodologies for repairing fractured skeletal tissues. One is external fixation, and the other is internal fixation.
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Suggested Study for Fracture Fixation
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Problems
Problems
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1.
List and sketch the bone fracture-fixation devices, indicating their simplicity and complexity and their effectiveness in healing fractures. What materials are suitable for such devices? Make a table listing their physical properties, and compare them with those of bone.
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2.
What is bioactive fixation of bone fractures? Explain the mechanism for such fracture fixation, indicating the interfacial mechanism of bone tissue conduction and induction. Also, indicate how the coating on metallic implants can be used for anchorage with bone.
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3.
Study the fracture-fixation screws for joining cortical bone and cancellous bone. What is the significant difference between the two types, and what is the reason for this difference? How do you propose to design such screws?
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4.
There is an oblique fracture in a femoral cortex almost at a 45° angle to its axis. At what angle must the cortical screws be fixed? Should it be perpendicular to the axis or perpendicular to the fracture line from the viewpoint of good compression at the fracture site? What minimum number of screws will be necessary to stabilize such a fracture?
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5.
Compare the efficacy of an external ring fixator and an IM nail and plate and screw fixator from the viewpoints of the duration of healing and patient compliance and cost.
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Pal, S. (2014). The Design of a Bone Fracture-Fixation Device. In: Design of Artificial Human Joints & Organs. Springer, Boston, MA. https://doi.org/10.1007/978-1-4614-6255-2_6
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DOI: https://doi.org/10.1007/978-1-4614-6255-2_6
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Publisher Name: Springer, Boston, MA
Print ISBN: 978-1-4614-6254-5
Online ISBN: 978-1-4614-6255-2
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