Force Plate Analysis of Dogs with Bilateral Hip Dysplasia Treated with a Unilateral Triple Pelvic Osteotomy: A Long-term Review of Cases

Cheryl A. Tano; Joanne R. Cockshutt; H. Dobson; C. W. Miller; D. L. Holmberg; Connie L. Taves

doi:10.1055/s-0038-1632616

Veterinary and Comparative Orthopaedics and Traumatology, Table of Contents

Vet Comp Orthop Traumatol 1998; 11(02): 85-93
DOI: 10.1055/s-0038-1632616

Original Research

Schattauer GmbH

Force Plate Analysis of Dogs with Bilateral Hip Dysplasia Treated with a Unilateral Triple Pelvic Osteotomy: A Long-term Review of Cases

Cheryl A. Tano

¹From the Ontario Veterinary College, Department of Clinical Studies, University of Guelph, Guelph, Ontario, Canada

,

Joanne R. Cockshutt

¹From the Ontario Veterinary College, Department of Clinical Studies, University of Guelph, Guelph, Ontario, Canada

,

H. Dobson

¹From the Ontario Veterinary College, Department of Clinical Studies, University of Guelph, Guelph, Ontario, Canada

,

C. W. Miller

¹From the Ontario Veterinary College, Department of Clinical Studies, University of Guelph, Guelph, Ontario, Canada

,

D. L. Holmberg

¹From the Ontario Veterinary College, Department of Clinical Studies, University of Guelph, Guelph, Ontario, Canada

,

Connie L. Taves

¹From the Ontario Veterinary College, Department of Clinical Studies, University of Guelph, Guelph, Ontario, Canada

› Author Affiliations

Abstract

Summary

A retrospective case series study was done to determine the long-term outcome of operations upon dogs treated for canine hip dysplasia by means of a triple pelvic osteotomy (TPO). Twentyfour dogs with bilateral hip dysplasia, that received a unilateral TPO between January 1988 and June 1995, were re-examined at the Ontario Veterinary College. The assessment included physical, orthopedic and lameness examinations, standard blood work, pelvic radiographs and force plate gait analysis. They were compared to bilaterally dysplastic dogs that had not been treated, and also to normal dogs. Force plate data analysis demonstrated a significant increase in peak vertical force (PVF) and mean vertical force over stance (MVF) in the limb that underwent surgical correction by means of a TPO, when compared to the unoperated hip. It was determined that performing a unilateral TPO on a young dysplastic dog resulted in greater forces and weight bearing being projected through the TPO corrected limb when compared to the unoperated limb.

Dogs with bilateral hip dysplasia treated with a unilateral triple pelvic osteotomy (TPO) were assessed by force plate gait analysis, radiographs and orthopedic examination. There was a significant increase in hip Norberg angles over time, although degenerative changes did progress. Limbs that had been operated upon had significantly greater peak and mean ground reaction forces than limbs that had not received an operation.

Keywords

Force plate - triple pelvic osteotomy - hip dysplasia

Full Text

References

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