Acetabular depth
Acetabular depth
- Acronym: AD
Definition
The acetabular depth is a measurement used to assess the anatomy of the hip joint in dogs: it is used to calculate the acetabular index. It is determined from a 2D CT images in a transversal plane. The dog is placed in dorsal recumbency with hip joints extended, adducted, and rotated slightly internally. Measurement is performed on three contiguous images that include an acetabular fossa, a well-defined acetabular sourcil, a round head of femur, and a fovea capitis.
A line is drawn between the dorsolateral and ventrolateral points of the acetabulum (determining the acetabular width). A second line, perpendicular to the first, is drawn joining the dorsomedial border of the lunate surface. The acetabular depth is the length of this perpendicular line.
References
Andronescu et al. (2015). Associations between early radiographic and computed tomographic measures and canine hip joint osteoarthritis at maturity. American Journal of Veterinary Research, 76(1), 19–27. doi:10.2460/ajvr.76.1.19
Lopez et al. (2008) Relationships among measurements obtained by use of computed tomography and radiography and scores of cartilage microdamage in hip joints with moderate to severe joint laxity of adult dogs. Am J Vet Res. Mar;69(3):362-70. doi: 10.2460/ajvr.69.3.362.
