Abstract
Objective-To evaluate effects of tibial plateau leveling osteotomy (TPLO) on canine stifle joint biomechanics in a cranial cruciate ligament (CrCL)-deficient stifle joint by use of a 3-D computer model simulating the stance phase of gait and to compare biomechanics in TPLOmanaged, CrCL-intact, and CrCL-deficient stifle joints. Sample-Computer simulations of the pelvic limb of a Golden Retriever. Procedures-A previously developed computer model of the canine pelvic limb was used to simulate TPLO stabilization to achieve a tibial plateau angle (TPA) of 5° (baseline value) in a CrCL-deficient stifle joint. Sensitivity analysis was conducted for tibial fragment rotation of 13° to -3°. Ligament loads, relative tibial translation, and relative tibial rotation were determined and compared with values for CrCL-intact and CrCL-deficient stifle joints. Results-TPLO with a 5° TPA converted cranial tibial translation to caudal tibial translation and increased loads placed on the remaining stifle joint ligaments, compared with results for a CrCL-intact stifle joint. Lateral collateral ligament load was similar, medial collateral ligament load increased, and caudal cruciate ligament load decreased after TPLO, compared with loads for a CrCL-deficient stifle joint. Relative tibial rotation after TPLO was similar to that of a CrCL-deficient stifle joint. Stifle joint biomechanics were affected by TPLO fragment rotation. Conclusions and Clinical Relevance-In the model, stifle joint biomechanics were partially improved after TPLO, compared with CrCL-deficient stifle joint biomechanics, but TPLO did not fully restore CrCL-intact stifle joint biomechanics. Overrotation of the tibial fragment negatively influenced stifle joint biomechanics by increasing caudal tibial translation.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 626-632 |
| Number of pages | 7 |
| Journal | American Journal of Veterinary Research |
| Volume | 75 |
| Issue number | 7 |
| DOIs | |
| State | Published - Jan 1 2014 |
| Externally published | Yes |
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- veterinary(all)
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Canine stifle joint biomechanics associated with tibial plateau leveling osteotomy predicted by use of a computer model. / Brown, Nathan P.; Bertocci, Gina E.; Marcellin-Little, Denis J.
In: American Journal of Veterinary Research, Vol. 75, No. 7, 01.01.2014, p. 626-632.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Canine stifle joint biomechanics associated with tibial plateau leveling osteotomy predicted by use of a computer model
AU - Brown, Nathan P.
AU - Bertocci, Gina E.
AU - Marcellin-Little, Denis J
PY - 2014/1/1
Y1 - 2014/1/1
N2 - Objective-To evaluate effects of tibial plateau leveling osteotomy (TPLO) on canine stifle joint biomechanics in a cranial cruciate ligament (CrCL)-deficient stifle joint by use of a 3-D computer model simulating the stance phase of gait and to compare biomechanics in TPLOmanaged, CrCL-intact, and CrCL-deficient stifle joints. Sample-Computer simulations of the pelvic limb of a Golden Retriever. Procedures-A previously developed computer model of the canine pelvic limb was used to simulate TPLO stabilization to achieve a tibial plateau angle (TPA) of 5° (baseline value) in a CrCL-deficient stifle joint. Sensitivity analysis was conducted for tibial fragment rotation of 13° to -3°. Ligament loads, relative tibial translation, and relative tibial rotation were determined and compared with values for CrCL-intact and CrCL-deficient stifle joints. Results-TPLO with a 5° TPA converted cranial tibial translation to caudal tibial translation and increased loads placed on the remaining stifle joint ligaments, compared with results for a CrCL-intact stifle joint. Lateral collateral ligament load was similar, medial collateral ligament load increased, and caudal cruciate ligament load decreased after TPLO, compared with loads for a CrCL-deficient stifle joint. Relative tibial rotation after TPLO was similar to that of a CrCL-deficient stifle joint. Stifle joint biomechanics were affected by TPLO fragment rotation. Conclusions and Clinical Relevance-In the model, stifle joint biomechanics were partially improved after TPLO, compared with CrCL-deficient stifle joint biomechanics, but TPLO did not fully restore CrCL-intact stifle joint biomechanics. Overrotation of the tibial fragment negatively influenced stifle joint biomechanics by increasing caudal tibial translation.
AB - Objective-To evaluate effects of tibial plateau leveling osteotomy (TPLO) on canine stifle joint biomechanics in a cranial cruciate ligament (CrCL)-deficient stifle joint by use of a 3-D computer model simulating the stance phase of gait and to compare biomechanics in TPLOmanaged, CrCL-intact, and CrCL-deficient stifle joints. Sample-Computer simulations of the pelvic limb of a Golden Retriever. Procedures-A previously developed computer model of the canine pelvic limb was used to simulate TPLO stabilization to achieve a tibial plateau angle (TPA) of 5° (baseline value) in a CrCL-deficient stifle joint. Sensitivity analysis was conducted for tibial fragment rotation of 13° to -3°. Ligament loads, relative tibial translation, and relative tibial rotation were determined and compared with values for CrCL-intact and CrCL-deficient stifle joints. Results-TPLO with a 5° TPA converted cranial tibial translation to caudal tibial translation and increased loads placed on the remaining stifle joint ligaments, compared with results for a CrCL-intact stifle joint. Lateral collateral ligament load was similar, medial collateral ligament load increased, and caudal cruciate ligament load decreased after TPLO, compared with loads for a CrCL-deficient stifle joint. Relative tibial rotation after TPLO was similar to that of a CrCL-deficient stifle joint. Stifle joint biomechanics were affected by TPLO fragment rotation. Conclusions and Clinical Relevance-In the model, stifle joint biomechanics were partially improved after TPLO, compared with CrCL-deficient stifle joint biomechanics, but TPLO did not fully restore CrCL-intact stifle joint biomechanics. Overrotation of the tibial fragment negatively influenced stifle joint biomechanics by increasing caudal tibial translation.
UR - http://www.scopus.com/inward/record.url?scp=84903277847&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84903277847&partnerID=8YFLogxK
U2 - 10.2460/ajvr.75.7.626
DO - 10.2460/ajvr.75.7.626
M3 - Article
C2 - 24959728
AN - SCOPUS:84903277847
VL - 75
SP - 626
EP - 632
JO - American Journal of Veterinary Research
JF - American Journal of Veterinary Research
SN - 0002-9645
IS - 7
ER -