Equine Musculoskeletal Part I Flashcards
when should you ultrasound an acute injury usually?
after 3-4 days
which probe should you use for musculoskeletal injury?
highest frequency possible
linear probe
what should you do for patient preparation prior to an ultrasound?
clip
wash
lube
what should the fiber pattern be?
long, linear parallel fibers
what tendons and ligaments are in the metacarpus?
superficial digital flexor tendon
deep digital flexor tendon
inferior check ligament
suspensory ligament: body and branches
where do the suspensory branches in the metacarpus divide?
at level of buttons of splints
how does the deep digital flexor tendon differ in the metatarsus from in the metacarpus?
courses medial relative to superficial digital flexor tendon in proximal region
has accessory/medial head not present in forelimb
what is the most common metatarsal injury?
suspensory ligament
who is superficial digital flexor tendonitis common in?
racing thoroughbreds and eventers
what does a bandage bow look like on ultrasound?
fluid/edema surrounding tendon
little to no tendon injury
why should you ultrasound the pastern when looking for tendonitis?
injury to deep digital flexor tendon may extend into pastern region
what is inferior check ligament desmitis often missed with?
traditional palmar view
early may only affect lateral aspect of ligament
how is the probe marker positioned in equines?
laterally or proximally
when should you immediately scan an acute injury?
limb in abnormal position
will alter immediate plans for horse- show
how long is each zone when documenting an injury?
4cm
3 zones, each has an A and B
what can you see in the proximal metacarpus?
origin of suspensory ligament
carpal sheath surrounding the deep digital flexor tendon
what is the mid metacarpus like?
SDFT begins to flatten
ICL starts to taper and wrap around DDFT
what is the mid/distal metacarpus like?
SDFT is flattened
ICL inserts into DDFT
suspensory ligament branches
what does the distal metacarpus look like?
SDFT is thinner than DDFT
sesamoid bones
intersesamoidean ligament
how does the size of the suspensory ligament branches change as you move from proximal branch to insertion?
increases in size
where do the suspensory branch insertions occur?
abaxial surface of sesamoid bones
how is the ICL different in the metatarsus?
much smaller than in metacarpus
how frequently is the inferior check ligament injured in the metacarpus and metatarsus?
metacarpus: relatively frequent, especially for jumpers
metatarsus: rarely
