Most common osteorarticular disease in dogs.

It typically ocurrs in large and midium size dogs and is less common in small breeds.

It ocurrs when the femoral head (ball) becomes dislocated, outside its natural place within the hip socket (acetabulum)

By not being contained by the hip socket, the femoral head moves and causes stress to the area, inflaming and weakening the joint and periarticular tissues.

Common breeds at-risk of Hip Dysplasia: BullDogs, Dogo de Bordeaux, Saint Bernards, Napolitan Mastiffs, German shepherds, Rottweilers, Golden retreivers… all of them have an incidence above 20%.

Grading

Minimal alteration with small subluxation and scarce degenerative changes.

The 50-75 % of femoral head is outside the acetabulum: important degenerative changes are present.

Marked lateral femoral head subluxation, 25-50 % outside the acetabulum

Femoral head luxation with obvious flattening of the cranial acetabular edge and deformation of the femoral head; important degenerative changes are present.