Musculoskeletal Diseases Flashcards

1
Q

What are the most common causes of longbone fractures?

A

75% car accident
Indirect violence
Bone disease
Repeated stress

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2
Q

How do you classify long bone fractures?

A

Open vs closed
Simple vs comminuted
Stable vs unstable

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3
Q

How do you diagnose long bone fractures?

A

Radiographs - at least 2 views

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4
Q

What are clinical signs of long bone fx?

A

Hx of trauma, pain or localized tenderness, lameness, deformity of bone, loss of function, crepitus, localized swelling or bruising

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5
Q

How do you treat a long bone fracture?

A

ASAP. Reduction and fixation

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6
Q

What are the methods of fixation for long bone fractures?

A

Splints, casts, intramedullary pins, bone plates, any combo

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7
Q

What is the average healing time of long bone fractures?

A

5-8 weeks

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8
Q

Who is responsible for the management of bandages, casts, and splints?

A

The nurse

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9
Q

What does CCL stand for?

A

Cranial cruciate ligament

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10
Q

What is the most common stifle injury in dogs?

A

CCL rupture

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11
Q

What causes a CCL injury?

A

Sudden hyperextension of the stifle while exercising

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12
Q

What are the classification for CCL injury?

A

Rupture vs tear
Minor vs major instability

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13
Q

T/F CCL injury is as common in cats as it is in dogs

A

FALSE. Infrequent injury in cats

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14
Q

Who are the most likely candidates for CCL injury?

A

Middle age, obese, inactive animals

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15
Q

What are the clinical signs of CCL injury?

A

Acute on-set, non weight baring/limping, internal rotation of tibia when weight baring attempted, +/- stifle effusion

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16
Q

How do you diagnose CCL injury?

A

Cranial drawer movement. Tibial compression test (tibial thrust), radiographs

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17
Q

What is the cranial drawer movement test?

A

Tibia abnormally slides forward with respect to the femoral condyles

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18
Q

What is the treatment for CCL injury?

A

Surgical stabilization.

19
Q

What are the two types of surgical stabilization for CCL injury?

A

Extraarticular & intraarticular

20
Q

T/F with CCL injury the other leg will most commonly rupture within 1 year

21
Q

What is recommended after CCL stabilization surgery?

A

Weight loss. Cage rest 3-4 weeks with gradual reintroduction to use of the limb

22
Q

What are the two types of patellar luxation?

A

Medial & lateral

23
Q

When does medial patellar luxation most commonly happen?

A

Occurs early in life, usually not trauma related. Congenital due to anatomic deformities.

24
Q

What percent of patellar luxations are medial?

25
When does lateral patellar luxation most commonly occur?
Large & giant breed. Effected by hip dysplasia. Usually bilateral. foot twists laterally when weight bearing creating cow hocked gait
26
What is the diagnosis for patellar luxation?
Palpation, grading system by DVM, radiographs
27
What is the treatment for patellar luxation?
Surgical Bone reconstruction - create groove for patellar to sit
28
What size dog is most commonly effected by hip dysplasia?
Patients over 11-12 kgs
29
What are contributing factors to hip dysplasia?
Genetic predisposition primarily. Environment or dietary factors.
30
What are the types of hip dysplasia
Acetabular - shallow acetabulum so femoral head doesn't sit far enough in Femoral - shortened femoral neck Osteophye formation - joint damage and instabilit
31
Most common type of hip dysplasia?
acetabular
32
What is the diagnosis for hip dysplasia
Radiographs OFA type At least 2 years old before doing rads
33
What is the treatment for hip dysplasia?
Conservative - moderate exercise & weight control, anti-inflamamtion, nutraceuticals Surgical - FHO, total hip replacement, triple pelvic osteotomy
34
What does OCD stand for? What is it?
Osteochondrosis dissecans. Degeneration or aseptic necrosis of bone and cartilage. Followed by reossification resulting in joint changes
35
What joints are affected by OCD?
Shoulder most common. Stifle, hock, elbow
36
What are the clinical signs of OCD?
Lameness in large breed dogs (3-18mo)
37
How do you diagnose OCD?
Radiographs
38
What is the treatment for OCD?
Rest and weight control or surgical
39
Which type of tumor is most common on the bone?
Osteosarcoma 85-90%
40
What are the clinical signs of tumors on the bone?
Lameness, weight loss, severe pain over effected bone, swelling in effected limb
41
Which bones are most commonly affected with bone tumors?
Distal radius, proximal humerus, distal femur, proximal tibia
42
How do you diagnose bone tumors?
Radiographs, biopsy. Thoracic rads to make sure hasn't metastasized
43
What is the treatment for bone tumors?
No cure. Can amputate limb or radiation, to help with pain control