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Vet Comp Orthop Traumatol 2002; 15(03): 145-149
DOI: 10.1055/s-0038-1632729
Original Research
Schattauer GmbH

Biomechanical evaluation of triple pelvic osteotomy with and without additional ventral plate stabilization

R. B. Fitch
1   Department of Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO, USA
,
G. Hosgood
2   Department of Veterinary Clinical Sciences, Louisiana State University, Baton Rouge, LA, USA
,
A. Staatz
1   Department of Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO, USA
› Author Affiliations
Further Information

Publication History

Received 05 July 2001

Accepted 07 December 2001

Publication Date:
08 February 2018 (online)

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Summary

The triple pelvic osteotomy (TPO) is commonly performed for immature dogs with hip dysplasia despite screw loosening being a prevalent complication. A technique to diminish the incidence of screw loosening by reducing motion at the ilial osteotomy and reducing implant migration, was evaluated. Standard triple pelvic osteotomies, and triple pelvic osteotomies with additional ventral plate stabilization, were performed and biomechanically evaluated in canine cadaver pelves. Additional ventral plate fixation was found to significantly improve axial bending stiffness of TPOs. In vitro cyclical loading, performed in a manner to approximate post-operative weight-bearing, determined that additional ventral plate fixation significantly decreased the incidence of screw loosening and motion at the osteotomy site.

Keywords

Hip dysplasia - triple pelvic osteotomy - implant loosening
 

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