Diagnosing Lamness Flashcards
When performing a pre-purchase lameness evaluation, what party are you working for?
Buyer
What are the 7 classic steps of a lamenss exam?
History PE Palpation Observation a exercise Flexion tests Diagnostic nerve blocks Diagnostic imaging
What are important questions to ask in a history for a lameness exam?
Signalment ? Work? Shoeing history? Previous lameness? Duration of lameness? (Last normal?) What as been done since lameness noted (Rest? Work?) Possible cause? Does horse warm into or out the the lameness? Stumbling ? Treatments?
When doing a PE, you are unsure if the limb appears abnormal. How can you evaluate visual abnormalities?
Compare to contralateral limb
Conformation
Swelling
Symmetry
T/F: when evaluating lameness, you want to palpate the limb both weight bearing, and non-weight bearing
True
What is the gait lameness is graded from?
Trot
What is the best surface for evaluation of lameness?
Firm and event
For more subtle lameness, may require different surfaces, hills/incline
T/F: in a lameness exam, the lameness appears to be in the forelimbs. The horse has a head drop when the right limb in down. This means the lameness is in the right limb?
False
“Down sound”
If head goes down on the right limb, then the right limb is sound. The left limb would be lame
Head rises to decrease weight on lame limb
T/F: in hindlimb lameness the the head bob is down on the sound limb
False
Head goes down on the LAME limb
When using hoof testers, they are placed on all the following except?
Wall Heels Coronary band Frog Sole
Coronary band
A horse presents to you with a grade 3/5 RF lameness, which of the following would be expected as you watch the horse in motion?
A. Head nod down when RF is in contact with the ground
B. Head nod down when the LF is in contact with he ground
B. Head not down when LF is in contact with the ground
“Down sound”
Grade this lameness..
Difficult to observe
Inconsistent at any gait
Grade 1
Grade this lameness..
Difficult to observe in a straight line but consistently apparent under certain circumstances (eg circling, hard surface, or incline)
Grade 2
Grade the lameness..
Consistently observable at a trot under all circumstances
Grade 3
Grade the lameness…
Obvious lameness with marked head nod, hitching, and shortened stride
Grade 4
Grade this lameness..
Minimal weight bearing/non-weight bearing and inability to move
Grade 5
What are 5 pathogomonic lamenesses that can be diagnosed at the walk?
Peroneus tertius rupture Upward fixation of the patella (locking patella) Stringhalt Fibrotic myopathy Sweeney