The cranial cruciate ligament (CCL) plays a significant role in providing functional stability to the canine stifle joint and has been the topic of an increasing amount of attention in the veterinary community. The objective of this study was to evaluate the effects of CCL deficiency and common procedures for treatment of a ruptured CCL on patellar location within the trochlear groove. Five identical and anatomically accurate physical models of the left hind limb of a healthy dog were constructed using a combination of rapid-prototyping technologies and casting techniques. One model remained the intact control, one simulated a CCL deficient stifle and each of the remaining models underwent one of the three tibial osteotomy procedures to be examined: the Tibial Plateau Leveling Osteotomy (TPLO), Tibial Tuberosity Advancement (TTA), and the Triple Tibial Osteotomy (TTO). Physical testing via a custom testing apparatus was carried out for five stifle positions (75º, 96º, 113º, 130º, 148º) representing the normal range of motion of a large-breed dog. Confirmation of a cranial translation following transection of the CCL was in good agreement with literature. Cranial cruciate transection also caused a slight proximal shift of the patella with respect to the trochlear groove. The results of the models further suggest that both the TPLO and TTO procedures result in a more proximally located patella with respect to the trochlear groove, while the TTA results in a more distally located patella.
| Identifer | oai:union.ndltd.org:NCSU/oai:NCSU:etd-08182008-225839 |
| Date | 03 October 2008 |
| Creators | Crimi, Christopher Scott |
| Contributors | Dr. Andre P. Mazzoleni, Dr. Ola L. A. Harrysson, Dr. Denis J. Marcellin-Little, Dr. Harvey A. West II |
| Publisher | NCSU |
| Source Sets | North Carolina State University |
| Language | English |
| Detected Language | English |
| Type | text |
| Format | application/pdf |
| Source | http://www.lib.ncsu.edu/theses/available/etd-08182008-225839/ |
| Rights | unrestricted, I 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, dis sertation, 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 NC State University 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. |
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