Miscellaneous

Question 1

What are the 8 categories of bone disease?

Answer 1

Congenital
Arthritis
Trauma
Blood (hematological)
Infection
Tumor
Endocrine, nutritional, metabolic
Soft Tissue
(CATBITES)

Question 2

Which is associated with a symmetric pattern of uniform loss of joint space that is accompanied by soft tissue swelling, edema, and erosions: OA or RA?

Answer 2

RA

Question 3

Which is associated with an asymmetric pattern of nonuniform loss of joint space that is accompanied by osteophytes, subchondral sclerosis, and cysts: OA or RA?

Answer 3

OA

Question 4

What is overall the most common pathology of the spine?

Answer 4

Degenerative joint disease

Question 5

What is unique about the destruction associated with metabolic joint disease?

Answer 5

Joint space is usually spared (compare to RA and OA)

Question 6

What other kind of joint disease can usually be associated with a metabolic disease like gout?

Answer 6

DJD

Question 7

Which type of arthritis is called the “lumpy bumpy arthritis”?

Answer 7

Metabolic

Question 8

What is the most common organism to cause an infectious/septic arthritis?

Answer 8

Staph. aureus

Question 9

What is unique about the distribution pattern of infectious/septic arthritis?

Answer 9

Usually monoarticular

Question 10

How much bone must be destroyed to be able to see it on X-ray?

Answer 10

30-50%

Question 11

How much bone must be destroyed to be able to see it on a bone scan?

Answer 11

3%

Question 12

Which arthritis is most likely to occur in those aged 0-20?

Answer 12

Juvenile Rheumatoid Arthritis (JRA)

Question 13

Which arthritis is most likely to occur in those aged 20-40?

Answer 13

Seronegative or seropositive (inflammatory) conditions

Question 14

Which arthritis is most likely to occur in those aged 40+?

Answer 14

Degenerative, DISH, gout, CPPD

Question 15

What is the term for a surgical fusion? Congenital? Pathological?

Answer 15

Surgical = arthrodesis
Congenital = synostosis
Pathological = ankylosis

Question 16

What are the ABCDS of joint diseases?

Answer 16

Alignment
Bone
Cartilage
Distribution
Soft tissue

Question 17

What is the technique used to assess for joint disease more accurately than X-ray?

Answer 17

Scintigraphy (bone scan)

Question 18

Why is the law of parsimony applied to the study of joint diseases?

Answer 18

Patients with one arthropathy will most likely eventually present with another which can complicate the physical findings

Question 19

What is the most common cause of a neurotrophic arthropathy?

Answer 19

Diabetes

Question 20

What are neurotrophic arthropathies (aka Charcot joints)?

Answer 20

Diseases resulting from a loss of proprioceptive and sensory function (inability to sense pain)

Question 21

What is the usual distribution for a neurotrophic arthropathy?

Answer 21

Monoarticular

Question 22

What are the two categories of neurotrophic arthropathies?

Answer 22

Hypertrophic (bone forming) and atrophic (resorptive)

Question 23

Non-weight bearing joints are more likely to be affected by what category of neurotrophic arthropathies?

Answer 23

Atrophic (resorptive)

Question 24

Weight bearing joints are more likely to be affected by what category of neurotrophic arthropathies?

Answer 24

Hypertrophic

Question 25

What is unusal about the pain symptoms of patients with neurotrophic arthropathies?

Answer 25

Only 30% will have pain thus making diagnosis difficult

Question 26

What are the 6 D’s of radiographic findings of neurotrophic arthropathies?

Answer 26

Distended joints, density increase, debris, dislocation, disorganization, destruction

Question 27

What are the common areas for neurotrophic arthropathies?

Answer 27

Feet, knees, spine

Question 28

What is the condition involving Charcot’s joints of the knees and lumbar spine?

Answer 28

Tabes dorsalis

Question 29

Are hypertrophic Charcot’s joints more likely to occur n the upper or lower extremities?

Answer 29

Lower (weight-bearing joints)

Question 30

What is the location of a Lisfranc’s joint?

Answer 30

Tarsometatarsal articulation

Question 31

What kind of arthropathy presents with a “surgical amputation” appearance due to an osteolytic process of bone resorption?

Answer 31

Atrophic neutrotrophic

Question 32

Bone resorption of the proximal humerus secondary to syringomyelia revealing a “cut off” sign is indicative of which arthropathy?

Answer 32

Atrophic neurotrophic

Question 33

Licked “candy stick” appearance is common with what condition?

Answer 33

Atrophic neurotrophic arthropathy