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The relationship between limb function and radiographic osteoarthrosis in dogs with stifle osteoarthrosis

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Abstract:

Objective

To evaluate the relationship between limb function and radiographic evidence of stifle osteoarthrosis (OA) in dogs. Study Design

The relationship between force platform data and radiographic OA score was evaluated on 2 separate days using regression analysis. Interday variation was also assessed. Animals

Forty-one dogs with visible lameness and radiographic evidence of stifle OA. Methods

Force platform data were collected at a velocity of 1.7 to 2.0 m/s for 5 trials on day 1 and day 8. Radiographs taken on day 1 were scored using a previously reported OA scoring system. Results

No significant relationship was found between force platform data and OA score. No significant differences were found between any day 1 and day 8 force platform values. Conclusions

Although radiographic evidence of stifle OA provides evidence of pathology, it does a poor job of representing limb function. In addition, the absence of significant differences between day 1 and day 8 values in this population of dogs supports use of only a single force platform evaluation before measuring a treatment effect. Clinical Relevance

The presence of OA in the stifle joint does not correlate with clinical function; radiographic outcome should be used cautiously as a predictor of clinical outcome.

©Copyright 2003 by The American College of Veterinary Surgeons

Document Type: Research Article

DOI: http://dx.doi.org/10.1053/jvet.2003.50051

Affiliations: From the Department of Clinical Sciences, Iowa State University College of Veterinary Medicine, Ames, IA.

Publication date: September 1, 2003

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