Hip X-Rays
For information on understanding how to
interpret these x-rays and learn the importance of
correct positioning, please visit this site;
The following are x-rays of some of my labs,
labs I have bred and possibly other dogs as I
add to this page.
If you have not read my story about Cody, you may click here to get the history
behind these x-rays. The first thing I would like to show you is some x-rays of
normal hips. The following hips belong to my female, Shiloh, who received an OFA
Excellent rating on her hips at the time these were taken. This is not the view sent to
OFA, but the view taken without sedation. The x-ray sent to OFA was a better view
and still, you should be able to see that this is a very good example of what
constitutes normal hips.
Shiloh, age 2.
Note how the ball of the femur head sets deeply into the acetabulum (socket).
Here are the x-rays of three of Shiloh's offspring from her first litter. These were
preliminary views taken at 6-8 months of age.
Echo & Risky
Again, note that there is a good fit of the ball into the socket in each of these. If you look
closely, you can find varying degrees of this, but all would be considered to be normal hips at
this age.
Now, let's take a look at Cody's hips. On the left is his 2 year x-ray. Here you can see
that the ball of the femur does not fit deeply into the socket on either side.
Interestingly, the left hip appears to have less coverage than the right. However, it
was only his right hip which was affected at the age of 7 years, as you can see in the
x-ray on the right. Notice the thickening of the head and neck of the femur in the 7
year x-ray. Extensive remodeling of the joint has taken place and arthritic changes
are very apparent. On the other hand, the left hip joint is nicely seated, with good
coverage, a nice smooth surface and no degenerative changes.
Cody, age two years & Cody, age 7 years.
Even so, we can still say that neither hip sets as deeply in the socket as some of the
above x-rays. Look at Cody's 2 year next to Risky's 8 month.
Cody, age 2 years compared to Risky, age 8 months.
Again, this demonstrates to us the reason that there is an ambiguous line when
evaluating hip x-rays to be either dysplastic or normal. Obviously, one of the hips on
Cody's 2 year x-ray remained free from DJD and at age 7 would probably pass OFA.
Unfortunately, we never sent the 2 year on Cody in to OFA, so I can't tell you what
they would have said. However, Shadow, Cody's brother, did have his evaluated by
OFA and his left hip only was diagnosed as moderately dysplastic. And that is
indeed how he ended up at age 7, with his x-ray being a near mirror image of his
brother, Cody. Unfortunately, when I went recently to get a copy of Shadow's 2 year
x-ray, they were unable to find a copy. The thing to note and the thing the
veterinarians pointed out is that at the age of two you can see that the right hip
already has thickening of the femoral neck and head and this is what was tell tale of
a definitive problem.
Following is an x-ray of a puppy that was x-rayed at the age of 6 months. The
examining vet told the owners this dog was mildly dysplastic. For you breeders out
there, let me know what you think.
Finally, here is a picture of Cody's hips before and after his Total Hip Replacement.
An Acetabular Component is inserted and glued in after the degenerated and shallow original
acetabulum is hollowed out to allow a proper fit. You can now see the defining fine metal ring
that allows radiologists to see the new Acetabular Component in an x-ray. The femoral head is
removed and a cylindric hole is drilled into the femur. The new Femoral Stem is inserted into
the femur and held by a special bone cement. The new Femoral Head is attached to the Stem
and fits into the new Acetabular Component. While you can't see from this view, the femoral
stem extends well down into the leg bone.
If you have x-rays of labs that have been diagnosed with CHD and would like to share them
with me to use on this web site, please email me. This site is a way to show people various hip
x-rays and the ratings they have been given, as well as show the progress of CHD from
diagnoses through the stages of arthritic, degenerative changes that occur over time.