θ angle
θ angle
- Acronym: θ
Definition
The θ angle is a landmark used to assess angular deformities of the radius and provide guidance for corrections. It is determined from a mediolateral radiograph, or multiplanar reconstructed CT images of the radiusIn the sagittal plane.
the θ angle is measured as the angular intersection of the proximal anatomic radial axis and the distal anatomic radial axis.
A mean value of 11.88 +/- 1.76° has been reported for the θ angle in small-breed nonchondrodystrophic dogs.
References
Duncan et al. (2022). Assessment of normal radial joint orientation angles in nonchondrodystrophic small-breed dogs. J Am Vet Med Assoc. Sep 1;261(1):1-4. doi: 10.2460/javma.22.07.0286.
