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dc.creatorLemmon, Heberen_US
dc.date.accessioned2004-09-30T01:51:32Z
dc.date.available2004-09-30T01:51:32Z
dc.date.created2003-08en_US
dc.date.issued2004-09-30
dc.identifier.urihttp://hdl.handle.net/1969.1/310
dc.description.abstractThis study looks at improving reduced platen compression (RPC) specimen preparation procedures by developing a better method for locating the ideal RPC specimen on each bone. These improvements are aimed at decreasing the amount of time required to complete an RPC analysis and improving the quality of the obtained results. High-resolution micro-CT scans are used to gain a better understanding of rat long bone anatomy by quantifying the location, shape, and orientation of the growth plate, primary spongiosa, and secondary spongiosa. Micro-CT analysis shows that there are easily identifiable external landmarks on the anterior side of both tibias and femurs that identify the end of the growth plate and the point at which the top of an ideal RPC specimen should be located. The landmarks are the most proximal tip of the patellar surface for the femur and the base of the tibial tuberosity for the tibia. This study also analyzes the effect of variations in the actual RPC specimen location from the ideal location and the effect of different platen sizes on test results using BMD as a surrogate for mechanical properties. The analysis shows that the BMD increases as the target RPC specimen location approaches the growth plate and decreases on moving away from the growth plate. The study also indicates that consistency is necessary when obtaining RPC specimens to avoid error due to variation from the specified landmark. Additionally, the BMD decreased as the diameter of the platen is reduced. Choosing platen size then becomes a trade off between testing the greatest amount of cancellous bone possible and potentially higher load sharing by the cortical shell with larger platen sizes as well as the risk of compressing cortical bone during the test.en_US
dc.format.extent3688411 bytes
dc.format.extent89910 bytes
dc.format.mediumelectronicen_US
dc.format.mimetypeapplication/pdf
dc.format.mimetypetext/plain
dc.language.isoen_USen_US
dc.publisherTexas A&M Universityen_US
dc.subjectreduced platen compressionen_US
dc.subjectBMDen_US
dc.subjectmicro-CTen_US
dc.subjectcancellous boneen_US
dc.subjectmechanical propertiesen_US
dc.subjectraten_US
dc.subjectprimary spongiosaen_US
dc.titleMethods for reduced platen compression (RPC) test specimen cutting locations using micro-CT and planar radiographsen_US
dc.typeBooken
dc.typeThesisen
thesis.degree.departmentMechanical Engineeringen_US
thesis.degree.disciplineMechanical Engineeringen_US
thesis.degree.grantorTexas A&M Universityen_US
thesis.degree.nameMaster of Scienceen_US
thesis.degree.levelMastersen_US
dc.contributor.committeeMemberHogan, Harryen_US
dc.contributor.committeeMemberCreasy, Terryen_US
dc.contributor.committeeMemberBloomfield, Susanen_US
dc.type.genreElectronic Thesisen_US
dc.type.materialtexten_US
dc.format.digitalOriginborn digitalen_US


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