Hips Positioning - Page 4

Blitzen, I don't believe anyone is saying that the dog in question's hips aren't dysplastic--that left hip is not ideal, either.  MY issue is the abnormal appearance of the right side of the body of the ileum--both the right and left sides SHOULD be virtually identical; that's hardly the case with this male.  Compare the right side of the body of the ileum of the dog in question (arrowed area) to that of the arrowed area of his littermate; now compare both of these to the image you posted of the severel dysplastic dog from the Leerberg site.  Regardless of how bad the JOINTS themselves are, there should be NO remodeling of the body of the ileum that would be associated with hip dysplasia; further, if the male dog's pelvis was this misshapen as a result of a developmental defect, that deformity would have been evident long before now, as it would have a noticeable effect on the dog's movement.

I'm still digging about trying to find a radiograph of a dog with a similar malformation of the body of the ileum, and if/when I find one, I'll post it here for comparison, along with the diagnostics that accompany that image.  For now, however, this dog's films need to be examined by a veterinary orthopedist.

Here Here is a hip radiograph from another dog I pulled off the internet. The posters radiograph is not straight...this means that you are seeing more of the ilium than you would normally see...it is a thin bone that is wider if seen from the side. I don't think there has been any trauma...I think the dog was not placed under anesthesia and resented the positioning required to take a straight radiograph because of his severe dysplasia.

 

I agree with Ginabel; the whole pelvis is tilted in the image of the dog in question as indicated by the asymmetry of bone structures throughout the pelvis and differing contrast of the bones on the left and right.

LMAO at all the keyboard vets popping up on this thread.

Of course it's tilted. That's why I said I'd like to see it straight, so you can actually tell what's going on. Bad positioning can create all kinds of weirdness- shadows, big parts, small parts, etc. If a dog is tilted on the table and one side is higher than the other, everything is off. If the dog was straight, and looked THAT bad, then major damage has occurred. As bad as that hip is, and since it doesn't bother him, I'd like to see it straight if it were my dog. As hexe pointed out, that whole side looks screwy. I initially thought it was just the angle, but maybe not. Maybe it is. Hard to tell with this film. I didn't think hexe was saying the rest of the film was screwy because of the hip or was affected BY the hip; I took it to mean if it was truly that way, there has been some trauma and more than the hip was affected. That was my concern as well- IF there is a real injury, someone should have known about it. Not being a radiologist, I'd need to see a better xray to put my mind at ease if it were my dog.

GinaBel, that's what I initially thought as well, which is why I placed a grid over the first image to see just how crooked the pelvis alignment was...and it's not off by very much, frankly.  Look at the grids of the original film in question and the image you just posted--see how much difference there is in the space between the bottom horizontal line on each of these images, and the bottom of the ischiatic table, and between the horizontal line that makes up the top of that square which is lined up with the highest ischiatic tuberosity on each image? See how much difference there is in the centering of the pelvis, as demonstrated by how far skewed off the center line the ischiatic arch is?  Likewise, consider the top horizontal line, which is placed on each image at the upper edge of the right acetabulum, and the amount of gap between that line and the upper edge of the left acetabulum for each of these two dogs--the pelvis of the dog in question is not very skewed at all as far as placement is concerned, whereas the dog in the image you posted is markedly so.  I do wish we could see the wings of the ileum at the top of the original image, but it's been cropped below that so they've been lost.

Blitzen, you misunderstood what I was saying. I wasn't guessing whether the hip was that way because of genes or injuries when I used the word "damage." I meant damage in the sense of what had occurred AFTER whatever it was- genes or injury-that happened to that hip.  

Well, if the owner or Bhall has a need to try to determine injury or HD, they will consult an ortho specialist.  

Hexe, the dog in question is rotated/tilted along the Y axis (you could see this in a horizontal view of the pelvis).  The pelvis in Ginabel's image are rotated along the Z (the one coming out of the screen) and the Y axis, but you can see the Z axis rotation in the AP view.

Example of Poor Positioning (source is OFA):




Progeny Hip Score Probability (source is OFA):

T= total number; N = normal progeny; D = dysplastic progeny

So what was the verdict?  Did a specialist look at them?  Were they redone?