FCI Scala for hips and elbows

In Finland hips and elbows are evaluated using FCI (Federation Cynologique Internationale) scala.

HIPS:

A - No signs of hip dysplasia. The femoral head and the acetabulum are congruent. The craniolateral rim appears sharp and slightly rounded. The joint space is narrow and even. The acetabular angle according to Norberg (adapted for Pos I) is about 105 (as a reference). In excellent hip joints the craniolateral rim encircles the femoral head somewhat more in laterocaudal direction.

B - Near normal hip Joints. The femoral head and the acetabulum are slightly incongruent and the acetabular angle according to Norberg is about 105 or the centre of the femoral head lies medial to the dorsal rim of the acetabulum and the femoral head and the acetabulum are congruent.

C - Mild hip dysplasia. The femoral head and the acetabulum are incongruent, the acetabular angle according to Norberg is about 100 and/or there is a slightly flattenened cranilateral rim. Irregularities or no more than slight signs of osteoarthrotic changes of the margo acetabularis cranialis caudalis or dorsalis or on the femoral head and neck may be present.

D - Moderate hip dysplasia. Obvious incongruency between the femoral head and the acetabulum with subluxation. Acetabular angle according to Norberg more than 90 (only as a reference). Flattening of the cranilateral rim and/or osteoarthrotic signs.

E - Severe hip dysplasia. Marked dysplastic changes of the hip joints, such as luxation or distinct subluxation, acetabular angle according to Norberg less than 90, obvious flattening of the margo acetabularis cranialis, deformatin of the femoral head (mushroom shaped, flattening) or other signs of asteoarthrosis.

NOTE! Some years back the hip evaluation was further divided to 1 and 2 (A1, A2, B1, B2 etc.). So, A1 was the best grade, and E2 was the worst.

ELBOWS:

0 - No changes
1 - Mild changes
2 - Moderate changes
3 - Severe changes

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