![]() Physical inactivity because of illness, weather, or the owner’s management practices may also result in some degree of joint laxity. Radiography of females in estrus or pregnant 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. Sire and dam information should also be present. 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. Both the owner and vet should complete and sign their respective sections of the OFA application. If this required information is illegible or missing, the OFA cannot accept the film for registration purposes. The radiograph 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. For elbows, the animal is placed on its side and the respective elbow is placed in an extreme flexed position. Chemical restraint (anesthesia) to the point of relaxation is recommended. ![]() The knees (stifles) are rotated internally and the pelvis is symmetric. 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. This view is accepted world wide for detection and assessment of hip joint irregularities and secondary arthritic hip joint changes. Radiographs submitted to the OFA should follow the American Veterinary Medical Association recommendations for positioning. ![]()
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