Hip Radiographs - Information to the Cat Owner

Talk to your veterinarian about the purpose of your visit; if your veterinary does not have the necessary equipment, he will be able to refer you to a colleague who has.


Radiographs are taken of the cat's hips at 10 months of age at the earliest to get an official result. You can of course test younger cats as well (between 6 and 10 months; younger than 6 months might not give a reliable result) but then the result will be a preliminary one.


It is not obligatory to sedate the cat, but a mild sedative (injection) can be given in order to make the cat lie still and stretched out in order to get a good picture of the hips. If the cat is calm and easy to handle a good picture can be achieved without using any sedatives. Most cats do not like the sound the camera makes and it is at this moment that many cats do not want to lie still. The mild sedation of the cat does not affect the HD test results negatively. The cat should however not be heavily sedated as this can have minor effects on the outcome of the evaluation.


Make sure the cat's pedigree is already registered in the pedigree database of PawPeds, by sending it to one of your breeds registrars.

Before going to the veterinary to have your cat's hips radiographed you have to fill in the part "To be filled in by the owner" on the form and sign it. For clear readability, please fill out the form on your computer and print it, sign it and bring it to your appointment.

The fee for the evaluation of the radiographs should reach PawPeds' account shortly after you have had the test done. Please clearly state that you are paying for "HD evaluation" and write your cat's name. A reminder is sent to the cat owner if payment has not been received when the radiographs arrive at the registry. Make sure the cat's pedigree is already registered in the pedigree database of PawPeds, by sending it to one of your breeds registrars.

You must bring the following to the veterinary appointment:

  • The correct form for HD-testing (duly filled in and signed), download it here!
    Very Important so that the Veterinarian will know where to send the form and the radiographs.
    If you would like to have an extra radiograph for your own files, please ask the veterinary for an extra one, as the radiographs sent in will be kept in the archives of the health program for future reference.

  • IMPORTANT: If your cat has not yet been microchipped or tattooed, you must have that done either during the same visit or before.
    The radiograph must be identified with either microchip or tattoo number and the veterinary must check the identification of the cat. This is necessary for the results to be registered in the official Registry.

  • Proof of identity of the cat (some countries have official health passports, vaccination booklets, confirmation of the microchip or tattoo)


What happens next?:

  • The veterinarian sends off the radiographs together with the original form to the veterinary Elisabeth Ball. Her address is clearly stated on the original form.

  • Elisabeth Ball will evaluate the radiographs approximately every 2-3 weeks.

  • You will have the result sent to you by e-mail, PawPeds will then show "Result registered but not public yet", the results will be public after 60 days. 
    The reason is to give owners time to tell about possible bad results to those who might need to know so that no one would find out through the webpage.

  • IMPORTANT! Do not forget to pay for the evaluation!

Price-list including postage outside the Nordic countries:

Please note that bank fees/transfer fees are not included in the prices below. The cat owner should pay all bank fees both in his own country as well as in Sweden. PawPeds accepts no additional costs and will accept no checks. Payment should be made to PawPeds:

c/o Peter Olsson
Ängsmyrvägen 1, Bäsna
IBAN SE42 6000 0000 0006 1075 0682
Within Sweden: bankgiro 200-1816.

Evaluation of cat using the health program's original form

150 SEK/cat

Payment reminder

20 SEK/cat

Any surplus money will be used for lectures and research with a focus on the health of our cats.

A pdf-copy of the original form with the result will be sent to the cat owner as soon as the registrar has received the evaluated radiographs and the original form from Elisabeth Ball and when payment has been received by the treasurer. The health program will keep the radiographs for future research.

Extract from the official HD register can be downloaded, together with other health data, on the page for Health Data Download.

Paying through PayPal

You can also pay for your HD evaluations through PayPal. Because of the fee PayPal charges for transferring money, you will then have to pay 160 SEK for the cat. Pay to PawPeds's PayPal account:
This email address is being protected from spambots. You need JavaScript enabled to view it.

Important! It is important that you write the name(s) of the cat(s) and the owner's name and email address in the notes of your payment!


If you have any questions, please don't hesitate to contact the contact persons for the health programme!


Hip Radiographs - Information to the Veterinary

We collaborate with the veterinary and radiograph expert Elisabeth Ball who evaluates all the hip radiographs on behalf of the health program. We believe that it is very important that these radiographs are evaluated by one person only, in order to get as consistent an evaluation as possible. Below you will find some brief information on how the cat should be radiographed and how to fill in and use the original form for Hip Radiograph. Cat owners with breeds other than the Maine Coon are welcome to use the same form.


  • IMPORTANT: Please note that the cat has to have identification such as a microchip or a tattoo and you should verify that this is correct.
  • The ID-number should be put on the radiograph.
  • It is also very important that our original form is used: One part of the original form is to be filled in by the cat owner and the second part by the veterinary.
  • The owner should have signed that permission is given to send in the results to the public registry before the radiographs are made.
    We need sufficient submissions to evaluate the correct frequency of HD in the breeds to see the effect of testing on later generations.
  • You will find the address of Elisabeth Ball where the radiographs have to be sent to on this form.


  • We recommend that the cat is not given a sedative (injection) since it may have minor effects on the outcome of the evaluation.
    However, if it is necessary then a mild sedative (injection) is recommended before the radiograph to facilitate positioning the cat. The cat should however not be heavily sedated.

  • The same routines should be used as radiographing a dog’s hips. The pelvis and the knee joints should be seen on the radiographs.
    The legs should lie parallel and the knee joint should lie in a straight line with the thighbone. The legs should not be rotated inwards or outwards.

  • The pictures should be digital (do not send analog pictures) and saved in DICOM format. They should not be compressed. You can send them either on CD or USB. Emailing the pictures for evaluation is not possible at this time.


The evaluation grades on the scale used are the same ones as for hip radiographing dogs, but due to the fact that the anatomical picture is different for cats the usual “Norberg’s angle” is not used. This means that we do not use the ABCD evaluation scale. Instead, we use “normal”, “1”, “2” and “3”.

NOTE: The radiographs together with the original form duly filled in and signed, should then be sent by the veterinarian to the following address for evaluation:

Universitetsdjursjukhuset UDS
Att: Elisabeth Ball
Box 7040
SE-750 07 Uppsala

If you wish to be informed of the results, the cat owner will be able to provide you with copies of the evaluation results.