OFA Radiographs
For hips, elbows, and patellae .
OFA Radiograph procedures according to the Orthopedic Foundation for Animals:
Radiographs submitted to the OFA should follow the American Veterinary Medical Association recommendations for positioning. This view is accepted worldwide for the detection and assessment of hip joint irregularities and secondary arthritic hip joint changes. To obtain this view, the animal must be placed on its back in dorsal recumbency with the rear limbs extended and parallel to each other. The knees (stifles) are rotated internally and the pelvis is symmetric. Chemical restraint (anesthesia) to the point of relaxation is recommended. For elbows, the animal is placed on its side and the respective elbow is placed in an extremely flexed position.
The radiograph film must be permanently identified with the animal's registration number or name, the date the radiograph was taken, and the veterinarian's name or hospital name. If this required information is illegible or missing, the OFA cannot accept the film for registration purposes. The owner should complete and sign the OFA application. It is important to record on the OFA application the animal's tattoo or microchip number in order for the OFA to submit results to the AKC. Sire and dam information should also be present.
Radiography of pregnant or estrus females should be avoided due to possible increased joint laxity (subluxation) from hormonal variations.OFA recommends radiographs be taken one month after weaning pups and one month before or after a heat cycle. Physical inactivity because of illness, weather, or the owner's management practices may also result in some degree of joint laxity. The OFA recommends evaluation when the dog is in good physical condition.
Chemical restraint (anesthesia) is not required by OFA but chemical restraint to the point of muscle relaxation is recommended. With chemical restraint optimum patient positioning is easier with minimal repeat radiographs (less radiation exposure) and a truer representation of the hip status is obtained.
The well-trained staff at Suburbia North Animal Hospital has been performing OFA radiographs for over 20 years. We sedate all our patients for the best possible OFA radiograph film.