Large Animal Osteoarthritis: Diagnostics and Treatments Flashcards

1
Q

name the components of the joint that are affected with OA and associated diagnostics

A
  1. subchondral bone: radiograph, CT, US, MRI, nuclear medicine
  2. articular cartilage (hyaline): radiographs (indirect), US, MRI, CT (indirect via contrast), arthroscopy!
  3. joint capsule/supporting ligaments: US, MRI, arthroscopy, synoviocentesis
  4. synovial membrane:
  5. synovial fluid: US, synoviocentesis, arthroscopy
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

identify diagnostic tools that can be used to identify OA in a clinical patient and explain the benefits of each

A
  1. static palpation: feel for pain, effusion, and range of motion
  2. dynamic: use different surfaces, straight lines/circles, and faits to exacerbate lameness
  3. flexion tests: change in lameness and ROM after?
  4. diagnostic analgesia: nerve and joint blocks
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

explain the difference in disease versus symptom modifying treatments

A

disease modifying: directly slows or reverses the progression of disease (ex. arthroscopy to remove an osteochondral fragment)

symptom modifying: improves function and decreases the clinical signs of the disease (ex. oral phenylbutazone to improve lameness)

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

describe the spectrum of treatment options for a large animal with OA

A

broad! depending on money and communication

  1. medical:
    -systemic (NSAIDs: bute, banamine, firocoxib, acetaminophen; SYMPTOM MODIFYING),

-or local
-(joint health, hyaluronic acid, polysulfated glycosaminoglycan (disease AND symptom modifying)
-topical NSAIDs, intra-articular injections of corticosteroids or hyaluronic acid; (symptom modifying)

  1. shoeing: lessen concussive forces, add stability, increase balance, provide hoof leverage but regular shoeing/trimming intervals are key! (symptom modifying)
  2. surgical: arthroscopy, implant placement, arthrodesis/ankylosis (fuse joints)- disease and symptom modifying
  3. rehabilitation: exercise or other modalities
How well did you know this?
1
Not at all
2
3
4
5
Perfectly