Lameness examination Flashcards
Lameness is defined as
an abnormal stance or gait caused by either a structural or a functional disorder of the locomotor system.
Lameness is not a disease per se but a clinical sign. A manifestation of pain or mechnical restrictions.
One of the most common medical issues in equine vet med?
lameness
The forelimbs are considered to support approx. how many percent of the horse’s body weight?
60-65%
Optimal diagnostic order for diagnosing lameness:
- thorough history
- static musculoskeletal evalulation
- dynamic evaluation so horse moving
- manipulative or flexion test
- perimural anestesia to test
- diagnostic imaging
Classification of lameness into 5:
- supporting limb lameness
- swinging limb lameness
- mixed lameness
- primary or baseline lameness
- compensatory or complementary lameness
When should you perform a dynamic eval. on soft surfaces?
sole/frog (suspected foot problems) because otherwise this part of the foot does not typically contact hard surfaces
down on sound means
in the forelimbs: the head is down when the sound limb is contacting the ground
pelvic hike or rise means
upward movement of the pelvis on the lame limb; decreasing weight on the lame limb and shifting it to the sound
lameness scale
0 being no lameness whatsoever
1 lameness not consistently apparent
2 lameness difficult to obsevre at a walk
3 lameness detectable at a trot
4 lameness obvious at a walk
5 being as lame as they come/ minimal weight bearing
define valgus
Valgus alignment is known as knock knee syndrome. It shifts the load-bearing axis to the outside of the knee joint, forcing the knees to be positioned inward.
define varus
Varus alignment, or bow leg syndrome, causes the load-bearing axis of the leg to shift to the inside, pushing the knees outward.
term for a force that pushes in toward the center of your body.
valgus
term for for pushing out, away from the center of your body.
varus
What is a positive result on a flexion trot test?
lameness worsens
What is a negative result on a flexion trot test?
no change in lameness