Description of grading applicable to dogs aged more than one
year, provided positioning is correct and radiographic quality
is optimal.
FCI Grade |
Description |
F C I criteria |
Old RSA Grade |
A1 |
Excellent hips |
No signs of hip
dysplasia |
0 |
A2 |
Good hips |
0 |
B1 |
Fair hips |
Near normal hip
joints |
0 |
B2 |
Marginal dysplasia |
1 |
C1 |
Mild dysplasia |
Mild hip dysplasia |
1 |
C2 |
Mild to moderate dysplasia |
1 |
D1 |
Moderate dysplasia |
Moderate hip dysplasia |
2 |
D2 |
Moderate to severe dysplasia |
2 |
E1 |
Severe dysplasia |
Severe hip dysplasia |
3 |
E2 |
Very severe dysplasia |
4 |
|