150 Clinical Features
(A)(B)Figure 20.13 (A) Radiographs of an 8-month-old Rottweiler with an avulsion of the popliteus tendon. On the
caudo-cranial view, a rounded opacity (white arrow) can be identified in the lateral part of the stifle. Its origin is unclear
from these radiographs. (B) Corresponding transverse and dorsal reconstructed CT images showing this opacity
originating from the tendon of origin of the popliteus muscle (white arrows).
Figure 20.14 Transverse image of a CT arthrogram
through the area of the avulsed attachment of the
cranial cruciate ligament. The contrast study shows
that the avulsion is not surrounded by contrast
medium, meaning that there is still some fibrous
attachment present and that the fragment is not
completely detached (arrows). The silhouette of the
involved cranial cruciate ligament can also be
appreciated.