FCI Classification of Hip and Elbow Dysplasia by

On June 1, 1999 the FCI's General Assembly adopted the Scientific Commission's motion aimed at introducing an international certificate for hip and elbow dysplasia

This certificate is to serve as a supplement to the respective national certificates for purposes of providing information across boarders. In order to document any diverging national classifications in the international certificate, they must be adapted to the FCI's classification so as to ensure that everyone will understand them. The model of such a certificate worded in the FCI's four official languages will be introduced in the next issue of FCI Magazine together with recommendations for the organizational implementation of the examinations. The classifications of hip dysplasia (HD) is based on an FCI symposium which took place back in 1991, that of elbow dysplasia (ED) on the recommendations of the International Elbow Working Group. Both procedures have been recognized by the World Small Animal Veterinary Associations.

Hips = HD (eng/swe)
A= No signs of hip dysplasia	A= Normala höftleder (= tidigare UA)
The femoral head and the acetabulum are congruent. The craniolateral margin has sharp outlines and rounded ends. The joint space is narrow and even. The acetabular angle according to Norberg is approx. 105 degrees (as a reference). In the case of excellent hip joints, the craniolateral acetabular rim encircles the femoral head somewhat farther then laterocaudally.
B= Nearly normal hip joints	B= Nästan normala höftleder (= tidigare UA)
The femoral head and the acetabulum are either slightly incongruent, and the angle to Norberg is approx. 105 degrees, or the center of the femoral head lies in a medial position with respect tot he dorsal margin of the acetabulum, and the femoral head and the acetabulum are congruent.
C= Light hip dysplasia	C= Höftleder lindrig dysplasi (= tidigare grad I)
The femoral head and the acetabulum are incongruent, the acetabular angle according got Norberg is about 100 degrees, and/or the craniolateral rim of the acetabulum is slightly flattened. There may be irregularities or no more than slight signs of osteoarthrotic alterations of the margo acetabularis cranialis, caudalis or dorsalis or on the femoral head or neck.
D= Moderal hip dysplasia	D= Höftleder måttlig dysplasi (= tidigare grad II)
Obvious incongruency between the femoral head and the acetabulum with subluxation. Acetabular angle according to Norberg greater than 90 degrees (as a reference only). Flattening of the craniolateral margin and/or osteoarthrotic signs.
E= Severe hip dysplasia	E= Höftleder kraftig dysplasi (= tidigare grad III och IV)
Marked dysplastic alterations of the hip joints, such as luxation or distinct subluxation, acetabular angle according to Norberg less than 90 degrees, obvious flattening of the margo acetabularis cranialis, deformation of the femoral head (mushroom-shaped, flattened), or other signs of osteoarthrosis.

This classification is based on radiologically ascertainable features only, It was worded as unambiguously as possible.

Elbows = ED/AD (eng/swe)
0= Normal	UA= Utan anmärkning
No detectable abnormality
1= Minimal arthrosis	lbp= Lindrig benpålagring
Osteophytes, less than 2mm wide
2= Moderate arthrosis	mbp= Måttlig benpålagring
Osteophytes, between 2 and 5mm wide
3= Severe arthrosis	kbp= Kraftig benpålagring
Osteophytes, wider than 5mm wide

Any objection to the classification can be put forward through the nation kennel clubs to an expert commission set up by the FCI's Scientific Commission.