Peer-reviewed veterinary case report
Hip reduction angle at 4 months predicts hip arthritis in Labradors
By Corfield, G S et al.·Published in Australian veterinary journal·2007·School of Veterinary and Biomedical Sciences·View original on PubMed →
PetCaseFinder translated the abstract of this peer-reviewed paper into plain English so pet owners can read it. We do not publish original research — every detail traces back to the citation above. How we work →
Original publication title: Assessment of the hip reduction angle for predicting osteoarthritis of the hip in the Labrador Retriever.
- Species:
- dog
Plain-English summary
A group of 11 Labrador Retrievers, all around 4 months old, were examined to see if certain hip measurements could predict the development of hip osteoarthritis by the time they reached 12 months. The researchers looked at the hip reduction angle and other tests, but found that while some measurements were repeatable, they weren't very effective at predicting osteoarthritis. The Ortolani sign, which checks for hip joint issues, was very sensitive but not specific enough to be a reliable predictor on its own. Overall, the hip reduction angle didn't add much to the existing tests for predicting hip problems in these dogs.
People also search for: Labrador Retriever hip dysplasia symptoms · predicting hip osteoarthritis in dogs · Ortolani sign in puppies
Abstract
Hip palpation has been used to provide semiquantitative information regarding passive joint laxity and susceptibility to hip dysplasia. The purpose of this study was to: (1) evaluate the intra- and inter-examiner repeatability of the hip reduction angle measured at 4 months of age by three examiners using manual goniometry and an electromagnetic tracking system; (2) compare the hip reduction angle measured with manual goniometry to the hip reduction angle measured with the electromagnetic tracking system; and (3) evaluate the hip reduction angle, distraction index and Ortolani manoeuvre at 4 months of age as predictors of the development of hip osteoarthritis at 12 months of age in 11 Labrador Retriever dogs. Intra- and inter-examiner repeatability was demonstrated for both the manual and electromagnetic goniometric measurement of the hip reduction angle (coefficient of variation < 4.3% and < 6.1%; and P = 0.163 and P = 0.836 respectively). The hip reduction angle measured by manual goniometry was moderately correlated to the hip reduction angle measured by the electromagnetic tracking system (r = 0.603, P < 0.0000). The hip reduction angle measured by manual and electromagnetic goniometry was a poor predictor of osteoarthritis at 12 months of age (r = 0.231, P < 0.062, and r = 0.321, P < 0.01). The distraction index was moderately correlated with the development of osteoarthritis by 12 months of age (r = 0.493, P < 0.0000). The Ortolani sign was sensitive (100%) but not specific (41%) for the development of osteoarthritis at 12 months of age. The hip reduction angle did not further quantify the Ortolani manoeuvre as a predictor of osteoarthritis in Labrador Retrievers.
Find similar cases for your pet
PetCaseFinder finds other peer-reviewed reports of pets with the same symptoms, plus a plain-English summary of what was tried across them.
Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/17547632/