Correct position of narthex during the HD x-ray - Page 1

Does anyone know the proper positioning of the narthex during the HD x-ray? I have already x-rayed 1 dog and the vet put the dog supinely and the narthex near the croup and extended the rear legs while in my second dog, another vet has put the narthex at the withers (always extending the legs). Since I know that correct position of the dog during the x-ray is critical, what is the proper way to do it? Any info would be highly appreciated. Thanks in advance.

No idea what you mean by narthex. When I look it up in the dictionary I get giant fennel, cane, casket, and entrance or vestibule to a church. The dog should be laying flat on its back. One person is holding the front legs, the other the hind legs. Front and rear legs are extended so that the dog is stretched out and the dog is kept straight on the back. It must not shift sideways. The hind legs are then rotated inwards a bit until the thighs are paralell to one another and the knee joints are next to each other. Poor positioning comes from the dog shifting sideways during the x-ray instead if laying perfectly straight and flat on its back. Legs not being paralell and knees not being next to each other, therefore the pelvis will also not be straight, and the dog not being rotated in properly. I just sent you two x-rays as examples.

I have no idea what the narthex is, but iff you check out the Leerburg site he has a good article on correct positioning, here is the link: http://www.leerburg.com/hipart.htm

Thank you very much for your info. By "narthex" I mean a plastic U-shaped case that is put under the dog (when the dog is in anaesthesia) in order to stabilize him.