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dc.contributor.authorJohnson, Kelly Annen_US
dc.date.accessioned2014-03-14T20:34:39Z
dc.date.available2014-03-14T20:34:39Z
dc.date.issued2010-04-19en_US
dc.identifier.otheretd-04302010-144750en_US
dc.identifier.urihttp://hdl.handle.net/10919/32061
dc.description.abstractObjective: To determine the ability of the Tibial Plateau Leveling Osteotomy (TPLO) to restore normal joint kinematics in a cranial cruciate ligament (CrCL)-deficient stifle through a loaded range of motion. Methods: Paired pelvic limbs from 12 dogs were compared in an in vitro biomechanical study. Each limb was placed in a custom designed jig at 120° of stifle extension under an axial load of 20% body weight. Electromagnetic motion tracking sensors were placed on the distal femur and proximal tibia. A force was applied at approximately 10 N/sec to mimic the action of the quadriceps muscle. Force application allowed the limb to move from 120° to maximal extension. Positional data was acquired at 60 points/second. Each limb was tested under normal, CrCL-deficient, and TPLO-treated conditions. Results: The TPLO failed to normalize CTT within the CrCL-deficient stifle; however, values trended towards intact values throughout the range of motion. No significant differences were noted in internal rotation in any of the three conditions from 120° â 137°. Hyperextension values did not differ significantly between conditions. Conclusion: Data from this biomechanical model suggests that the TPLO fails to neutralize CTT throughout a loaded range of motion. Internal rotation and hyperextension values were not found to differ significantly between intact, CrCL-deficient and TPLO repaired stifles. The effectiveness of the TPLO in restoring normal biomechanics is more significant at greater angles of flexion.en_US
dc.publisherVirginia Techen_US
dc.relation.haspartJohnson_KA_T_2010.pdfen_US
dc.rightsI hereby certify that, if appropriate, I have obtained and attached hereto a written permission statement from the owner(s) of each third party copyrighted matter to be included in my thesis, dissertation, or project report, allowing distribution as specified below. I certify that the version I submitted is the same as that approved by my advisory committee. I hereby grant to Virginia Tech or its agents the non-exclusive license to archive and make accessible, under the conditions specified below, my thesis, dissertation, or project report in whole or in part in all forms of media, now or hereafter known. I retain all other ownership rights to the copyright of the thesis, dissertation or project report. I also retain the right to use in future works (such as articles or books) all or part of this thesis, dissertation, or project report.en_US
dc.subjectHyperextensionen_US
dc.subjectInternal rotationen_US
dc.subjectCranial tibial translationen_US
dc.subjectKinematicsen_US
dc.subjectTibial plateau leveling osteotomyen_US
dc.titleThe Effect of Stifle Angle on Stifle Kinematics following TPLO: An in vitro Experimental Analysisen_US
dc.typeThesisen_US
dc.contributor.departmentVeterinary Medical Sciencesen_US
dc.description.degreeMaster of Scienceen_US
thesis.degree.nameMaster of Scienceen_US
thesis.degree.levelmastersen_US
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen_US
thesis.degree.disciplineVeterinary Medical Sciencesen_US
dc.contributor.committeechairLanz, Otto I.en_US
dc.contributor.committeememberHarper, Tisha A.en_US
dc.contributor.committeememberMcLaughlin, Ronalden_US
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-04302010-144750/en_US
dc.date.sdate2010-04-30en_US
dc.date.rdate2010-05-12
dc.date.adate2010-05-12en_US


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