Summary
Objectives: To study the radiographic projected hip parameters of the proximal femur and acetabulum
in young and adult Estrela Mountain Dogs with normal and abnormal hip joints. The
parameters evaluated were: femoral angles of inclination and anteversion (FAI and
FAA), femoral neck length and width (FNL and FNW), acetabular depth (AD) and acetabular
angle of retrotorsion (AAR).
Methods: Five hundred and twenty-five standard hip-extended ventrodorsal radiographic views
and 622 mediolateral views of the right and left femur were used to measure the FAI,
FAA, FNL, FNW, AD, AAR and modified AAR (mAAR).
Results: The FAI decreased in adult dysplastic dogs, in females and in right femora; FAA decreased
with age; FNL was characterized by a greater relative size in normal adult animals;
FNW was greater in abnormal hips in young and adult animals; AD was less in adult
dysplastic dogs and in right hips; AAR was similar in the studied groups; mAAR was
greater in abnormal hips and in left hips.
Clinical significance: The data may be used in future studies, which compare this breed to others. Morphological
variations in femoral neck and acetabular morphometric parameters were present, and
these variables in dogs with different ages and with hips in varying states of health
should not be compared.
Keywords
Femoral angle of inclination - femoral angle of anteversion - femoral neck length
- femoral neck width - acetabular depth - acetabular angle of retrotorsion