For The Love Of The Breed
Greetings all! I've spent the last few hours reading this and that about the difference between Pennhip, OFA and FCI hip and elbow certifications. I see the Pennhip and OFA is common in the States and it appears as if FCI is preferred in SA (feel free to correct me). As I'm here in Kenya and will need to send my film off to either the US or SA, I'd like to know which evaluation method is preferred by the masses. For those of you in SA, is FCI the way for us to go? I'll need to be able to provide my Vet with the correct instructions so as to properly "shoot" the x-rays for evaluation. Your comments are very welcome.
This is what I found on http://www.sabt-usa.org/HipAndElbowCertification.aspx:
"In the USA there are basically two types of hip testing methods available:
The FCI supporting countries, to include most of Europe plus many other countries over the world, have their own (FCI) hip testing method. The SABT recognizes FCI hip and elbow certification."
And this is what was on http://www.canismajor.com/dog/pennhip1.html:
"OFA x-rays can be done by any veterinarian, with or without anesthesia or muscle relaxants. The x-rays are examined by three radiologists who report their findings to OFA; the dog is rated severely dysplastic, mildly dysplastic, fair, good, or excellent or may be given a non-rating letter requesting submission of new x-rays in six months.
Although dogs must be two years old or older to get an OFA rating, the foundation will evaluate preliminary x-rays on younger dogs.
Recent studies of the OFA method of hip evaluation reveals a wide variation in the conformational grade assigned by different radiologists. Not only might one radiologist disagree with another, but may even contradict himself and give different grades to the same film on different occasions. Tests comparing positioning shows that the hip-extended position used by OFA tends to drive the femoral head into the socket, masking the amount of laxity and artificially improving the look of the hip joint.
As part of the strict quality control with PennHip, all x-rays must be taken under anesthesia to provide the greatest amount of muscle relaxation. This is particularly important when using a special positioning device called a distractor to help demonstrate hip laxity.
To maintain the integrity and validity of the PennHip method and its ongoing research, all x-ray films taken are submitted for evaluation. This prevents corruption of the data which occurs when films are screened and only the “best” are submitted for consideration.
PennHip evaluation reports are not pass-fail. Instead, each dog is ranked compared to other dogs of that breed. A dog with a percentile ranking of 30 percent has tighter hips than 30 percent of the dogs evaluated. In other words, 70 percent of the dogs evaluated have tighter hips than the patient."