Plan of action

1. Radiographs of the right fetlock area to assure the absence of a fracture.
2. Based on the radiographic results an ultrasound of the extremity should be done in 
order to assess the ligaments and tendons.  Normally the deep flexor tendon is slightly 
more echogenic than the superficial digital flexor tendon.  The suspensory ligament 
has a mixed echogenicity because it contains muscle fibers, which tend to be more 
preeminent in young animals.
3. Based on the result of the previous two exams a joint tab can be performed to rule out 
any infectious etiology.