Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

LA DX & TX II > Exam 1 - Equine Soft Tissue Injuries > Flashcards

Exam 1 - Equine Soft Tissue Injuries Flashcards

1
Q

where is type II collagen found?

A

joints

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

where is type III collagen found?

A

scar tissue

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

what is the composition of the SDFT like in regards to anatomical make-up?

A

longitudinal homogenous collagenous fibers

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

what are the weight-supporting structures found in the limbs of horses?

A

superficial flexor tendon, deep flexor tendon, & suspensory ligament

in the pastern - remember the distal sesamoidean ligaments

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

when assessing a tendon laceration on the palmar/plantar aspect of horse limbs, what are you evaluating during wound assessment?

A

weight supporting structures

neurovascular supply

synovial cavities

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

on the dorsal aspect of horse limbs, what tendons extend down the full length of the leg? which does not?

A

forelimb - common digital extensor, lateral digital extensor only goes to P1

pelvic limb - long digital extensor

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

at the cannon region in the forelimb/hind limb (metacarpal/metatarsal), if there is a flexor surface wound, what weight supporting structures are you concerned about?

A

sdf, ddf, & branches of the suspensory ligament

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

what imaging modality is indicated for investigating soft tissue structures within the hoof capsule?

A

MRI

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

at the digit region in the forelimb/hind limb (fetlock down), if there is a flexor surface wound, what weight supporting structures are you concerned about?

A

some of the sdf, ddf, distal sesamoidean ligaments, & the digital sheath

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

what structures do you think are injured? why?

A

sdf & suspensory ligament branches - dropped fetlock

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

what structures do you think are injured? why?

A

both the sdf/suspensory ligament & the ddf

toe is up & fetlock is dropped

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

what would you expect to see if only the deep digital flexor tendon was involved in an injury?

A

toes would be pointed up off of the ground

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

what benefits does ulstrasonography provide for tendon lacerations?

A

you can assess structural compromise to see what structures are affected, the fiber integrity, the percentage of cross-sectional damage, & also used as a way to assess healing in follow up exams

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

what diagnostic should you do prior to stitching up a tendon laceration?

A

radiographs - look for bony involvement & foreign bodies

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

what is the initial management of flexor surface wounds?

A

initial first aid for wound care (abx) & provide weight-bearing function if there is flexor instability

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

what is this? why would you use it?

A

dorsal splint cast - flexor instability

do a low bulk bandage with a dorsal splint & cast material for dorsal cortical alignment to remove work from the soft tissue structures

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

T/F: this is the most desirable coaptation for a horse with tendon lacerations resulting in flexor instability

A

true - kimsey leg saver splint

18
Q

what are the disadvantages of tenorraphy?

A

horse has to undergo anesthesia & it is costly

19
Q

what are the purposes of doing a tenorraphy for flexor surface wounds?

A

restore functional length of affected tendons, minimize the gap, reduce fibrosis

20
Q

T/F: tenorraphy on flexor surface wounds is a weight-supporting surgery

A

false - not even close

21
Q

what should be done in conjunction with a tenorraphy?

A

flexor support - need 12 weeks of protection with a gradual reduction - use u/s to help evaluate

start with a cast to hold the fetlock in slight flexion -> move to bandage cast -> move to splint bandage

dorsal support

22
Q

what is the prognosis of flexor surface wounds?

A

guarded to fair - 45-60% return to function

23
Q

T/F: prognosis of flexor surface wounds is dependent upon the structures involved in the injury

A

false - not dependent

24
Q

what structures are involved in extensor surface wounds in horses?

A

long/common/lateral digital extensor, dorsal metacarpus/metatarsus, digital extensor tendon sheath, & synovial structures

25
Q

what clinical signs would you expect to see in a horse with extensor surface wounds?

A

knuckling forward, dorsal weight bearing, & normal with solar placement

26
Q

what should you do for a horse with extensor surface wounds?

A

work up similarly to flexor surface - may use u/s & rads

debride the wound, skin & sub-q reconstruction (may use delayed closure or second intention healing)

splint them in extension (build up behind pastern region), ensure weight bearing, & keep them in stall rest for 4-6 weeks

27
Q

what can go wrong with a caudal splint in a horse with a surface extensor injury?

A

could cause a contracture - make sure they are full weight bearing to help prevent this

28
Q

what is the prognosis for horses with extensor surface wounds?

A

good to excellent - 70-80% return to function

extensors bear less load & have a minimal effect on gait, so better prognosis than flexor tendon lacerations

29
Q

what are some complications associated with extensor surface wounds in horses?

A

can develop exuberant granulation tissue, cortical sequestrums, digital contracture, or secondary stringhalt

30
Q

what locations do we commonly see strain-induced injuries in horses?

A

tendonitis in the SDFT/DDFT

suspensory desmitis in the origin/body/branches of suspensory apparatus

distal sesamoidean desmitis in the straight & oblique sesamoidean ligaments

31
Q

what are the 2 different pathogenesis we see with strain induced injuries in horses?

A

acute overload/cumulative injuries from acute damage/inflammation where we see a repair response

molecular degeneration with no inflammatory or reparative response

32
Q

what horses do we commonly see strain-induced injuries from the pathogenesis of molecular degeneration?

A

racing horses in their SDFT - looks like bowed tendons, SDF tendonitis in the mid-metacarpal region - associated with speed

33
Q

what is the lesion seen with strain injuries of the SDFT in the mid-metacarpal region of race horses?

A

weakened core lesion

34
Q

what is the typical presentation of a horse with SDF tendonitis in the mid-metacarpal region from a strain-induced injury?

A

inflammation/bowed tendon, pain, heat, & SWELLING

lameness correlates with amount of inflammation

loss of function/fetlock support (SDFT/suspensory ligament) - can look acute even if cumulative problem

35
Q

how do you diagnose SDF tendonitis proximal to the hoof capsule? what about in the hoof capsule?

A

ultrasound

MRI for hoof capsule

36
Q

how do you treat a strain-induced injury in a horse with SDF tendonitis?

A

rest/ice/compression - physical therapy

systemic nsaids

regenerative therapy

surgical therapy

rehabilitation - stall confinement, progressive exercise plan with gradual loading of healing tissues to optimize function

37
Q

what is the historical re-injury rate of horses with strain-induced injuries?

A

80%

38
Q

what horses typically get sesamoiditis in their proximal sesamoid bones?

A

racing horses

39
Q

what is indicated for small fragment fractures of the proximal sesamoid bones?

A

surgical removal

40
Q

what is indicated for major fractures of the proximal sesamoid bones?

A

surgical fixation

41
Q

where is type I collagen found in the body?

A

the tendons

LA DX & TX II (44 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions