Fig. 12. Transverse ultrasound images at the level of the pastern made with the limb in a non–weight bearing position. Possible adhesions exist between the deep digital flexor tendon and the straight sesamoidean ligament in the left forelimb distally (A, B) and more proximally (C, D). Ballottement can be used to determine if adhesions are present. Digital pressure on the sheath can displace structures. Fluid completely separates the deep digital flexor tendon and the straight sesamoidean ligament (B) after ballottement and manipulation of the fluid in the digital sheath. However, the deep digital flexor tendon and the straight sesamoidean ligament do not separate in the more proximal image (D) indicating adhesion formation. The proximal images (C, D) of the deep digital flexor tendon are off-angle.
less severely affected and will therefore be more apparent on MR images when compared with ultra- sound images. However, in certain cases, this dis-
218 2013 Vol. 59 AAEP PROCEEDINGS
crepancy appears to be the result of differences in tension on the basis of weight bearing. These dif- ferences are most apparent when comparing recum-
