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Impact Factor: 1.211
ISSN Print: 1609-0985
ISSN Online: 2199-4757
Imprint: Springer
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latest updated: 2015 / 07 / 30
Three-dimensional Geometric Constraint Evaluation and Analysis for Determining Commercial Knee Prosthesis
Ming-Shium Hsieh, 
Ming-Dar Tsai, 
Shyan-Bin Jou, 
Abstract
This paper describes a method of automatically determining a knee prosthesis by evaluating geometric constraints that include avoiding abnormal bone tissue in sections and interfaces between prostheses and bones, and achieving maxi-mum contact but avoiding incomplete contact. Our algorithms manipulate volume data of patient’s knee to complete the above evaluations. These include using interfaces of prosthetic femur and tibia to intersect with the volume-representation femur and tibia and then detect abnormal bone tissue inside the interface, defects and incomplete contacts on interface boundary, and using tangent plane on curve-shaped prosthetic femur to obtain the patella platform for inserting the pros-thetic patella and thus compute the size of the prosthetic patella.
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