Bovine Lameness Flashcards Preview

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Flashcards in Bovine Lameness Deck (34)
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1
Q

What are the causes of blackleg?

A

Ineffective or lack of vaccination

Closterdium chovei

2
Q

What is malignant edema? How do you treat?

A

Cl. septicum +/- sordellii, novyi
Caused by wounds, injections or usage of contaminated vials -> causes fever & toxaemia
Treat with penicillin parenterally and even inject around the lesion.
(you can vaccinate twice, 2 weeks apart)

3
Q

Maternal Obstetrical Paralysis -> what are the two kinds?

A
  1. Obturator (very rare)

2. Sciatic involvement

4
Q

Obturator paralysis looks like what?

A

Can’t adduct it’s legs, wide base stance with hind limbs extended forward

5
Q

Scaitic paralysis looks like what? Caused by?

A

Can’t get up, exhausted
Due to prolonged unassisted calving, cuasing pinching of the sciatic nerve, or an assisted calving where they let the cow rest afterwards.

6
Q

What is downer cow syndrome?

A

A cow that isn’t able to stand after 24 hours and 2 treatments of hypocalcemia and all other causes have been eliminated

7
Q

What causes downer cow syndrome?

A

Laying on one leg for 6 hours or more (compartmental syndrome)… only 1/3rd of cows recover. (causes peroneal nerve injury -> hyper flexion of fetlock)

8
Q

What effects prognosis of downer cow syndrome?

A

The cow’s attitude and determination, value and client’s time.

9
Q

Name three lifting aids

A

Hip lifters, body slings, flotation tanks (should be used early!!)

10
Q

What can cause hip luxation?

A
  1. True obturator paralysis
  2. Downer cow syndrome
  3. Estrus activity on slippery surface
  4. Misadventure
11
Q

What does hip luxation look like?

A

Usually craniodorsal
• Stifle and digit rotate outward if
able to stand
• DDx – femoral neck fracture

12
Q

What causes stifle injuries

A

A twisting action of the limb while claws are firmly placed on the ground. Can be due to estrus & breeding activity. It is usually a partial or complete rupture of cranial cruciate ligament and meniscal injury (check out in lateral recumbency). Small damage can cause bit issues.

13
Q

Spastic syndrome

A

Crampiness
Genetic dominant
After rising
Adults

14
Q

Spastic paresis

A

Elso heel
Progressive unilateral
Young

15
Q

Contracted tendons

A

Contracted tendons common in 4 limbs

16
Q

Carpal hydroma

A

Don’t do anything - ignore, treat with rest

17
Q

Tarsal cellulitis

A
Hairless thickened skin
Bruised/thickened skin
If abscesses - treat locally
Systemic ceftiofur
(can also get septic cellulitis)
18
Q

Pasture foot rot

A
Subacute/acute
Fusobacterium necrophrum
Need to have a puncture
Swelling of the interdigital space
lameness, febrile
broken skin space, foul odour
arthritis in P2/P3 can be complication 
Systemic antibiotics - penicillin/oxytetracyline/ceftiofur
(can also get septic cellulitis)
CuSO4 for soak
19
Q

Heel horn erosion/stable foot rot

A
Caused by poor hygiene
Usually at the end of winter
Bilaterally at the hind limbs
Dichelobacter nodosis
See this bilateral lesions, with unilateral lameness
May also have digital dermatitis
Remove necrotic tissue, re-trim in 3 months
Don't give antibiotics for this!
Do sand bedding or pasture mats
CuSO4/Formalin
20
Q

Digital dermatitis

A

Looks like strawberry foot rot
Heifers new in a milking herd
Similar to stable foot rot
Two different spirochetes cause this (treponema)
No swelling
Usually 1 limb affected
Rest foot when standing, walk with minimal lameness
Treat with topical oxytetracycline spray
Control using a footpath
spray with oxytetracycline & get regular hoof trimming/disinfect between animals

21
Q

Sole Ulcer

A

Circumscribed area of hemorrhage and necrosis towards asia surface
Lateral - hind
Medial - forelimb
Heavy cows
Can be combined with nutrition issue - too much protein
Sole/plantar process of P3
Treat it by putting a medial block on

22
Q

White line disease

A

Disintigration of the fibrous junction between the sole and the wall - and penetrated by fibrous debris
High level of concentrate in food
Heavy animals
Lateral claw of hind limb
Abscessed - discharge at coronary band
Can get arthritis - navicular bursa
retroarticular infection can happen & arthritis
Trim up to the wall, block the sound claw

23
Q

Laminitis - what is it, diagnosis treatments?

A

acute grain overload
diagnosed by characteristics stance and history
slipper foot
treat with ketoprofin

24
Q

Sand crack - what is it, 3 types?

A

vertical fissure of the periopal and horn
Type 1 - coronary band
Type 2 - to mid-claw
Type 3 - to weight bearing surface

25
Q

Sand crack where & causes

A
Front lateral, abaxial surface
nothing to do with dryness
Poor feed to lush feed?
Biotin - vitamin H
lameness - only to type 3
trimming the edges, remove the axial portion of the toe to reduce weight bearing
26
Q

Corkscrew claw

A

cull them

27
Q

foot baths

A

Copper sulphate
oxytetracycline
formalin

28
Q

hoof trimming

A

ever 6 months for dairy cows

at least once before 1st parturition

29
Q

septic arthritis of the distal interphalangeal joint

A

Toe tilt
fistulous tracts
etc

30
Q

septic arthritis of the distal interphalangeal joint - treatments (3)

A
Digital amputation (go up into P1, pressure bandage for 5 days, change for 5 days)
Arthrodesis (solar/lateral techniques - how did the infection enter the joint?)
Euthanasia
31
Q

septic arthritis of the distal interphalangeal joint -Arthrodesis

A

solar/lateral techniques - how did the infection enter the joint?
Solar - affect the DDF
Lateral - deal with DDF, but harder to drain
Place a drain, put a pressure bandage

32
Q

septic arthritis of the distal interphalangeal joint - can you ship?

A

No, if they are lame
can’t put them on the truck
systemic antibiotics won’t work on their own

33
Q

Septic arthritis secondary to umbilical infections

A

secondary to umbilical issues

naval disinfection

34
Q

Mycoplasma - chronic pneumonia & polyarthritis syndrome

A

with caseous micro abscessation - mycoplasma pneumonia & arthritis