Knee
Caton-Deschamps index
0.6-1.2
Radiography (Lateral)
a : distance between upper part of tibia and inferior part of patella
b : lenght of articular surface of patella
Caton-Deschamps index = a / b
Patella baja <0.6
Patella alta >1.2
Reference
Biedert RM. Patellofemoral Disorders, Diagnosis and Treatment. Wiley. (2005).
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