The health of our dogs is very important to us, as are the genetic traits of our animals that are being passed through their offspring. We have chosen to use the PennHip method of screening for problems that can cause hip dysplasia, which is a common problem in Labrador retrievers. This method was shown to be more precise in determining future osteoarthritis.
According to the study, "Results suggested that OFA scoring of HE [hip joint-extended] radiographs underestimated susceptibility to osteoarthritis in dogs, which may impede
progress in reducing or eliminating hip dysplasia through breeding."
The researchers looked at the differences in the OFA scores and the PennHIP
DIs of radiographs of 439 dogs that were screened between 1987 and 2008. The
specific results showed that:
. 14% of dogs had hip joints scored as excellent by OFA standards, but 52%
(31/60) of those had a DI ≥0.30 (range, 0.14 to 0.61)
Click here to read the AJVM article: http://avmajournals.avma.org/doi/abs/10.2460/javma.237.5.532
According to the study, "Results suggested that OFA scoring of HE [hip joint-extended] radiographs underestimated susceptibility to osteoarthritis in dogs, which may impede
progress in reducing or eliminating hip dysplasia through breeding."
The researchers looked at the differences in the OFA scores and the PennHIP
DIs of radiographs of 439 dogs that were screened between 1987 and 2008. The
specific results showed that:
. 14% of dogs had hip joints scored as excellent by OFA standards, but 52%
(31/60) of those had a DI ≥0.30 (range, 0.14 to 0.61)
- 82% of dogs with OFA-rated good hip joints had a DI ≥0.30 (range, 0.10 to
0.77) - 94% of dogs with OFA-rated fair hip joints had a DI ≥0.30 (range, 0.14 to
0.77) - Of all dogs with fair to excellent hip joints by OFA standards, 80% had a DI
≥0.30. - All dogs with OFA-rated borderline hip joints or mild, moderate, or severe
hip dysplasia had a DI ≥0.30 (range, 0.30 to 0.83).
Click here to read the AJVM article: http://avmajournals.avma.org/doi/abs/10.2460/javma.237.5.532