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NMSP - Exam 2 > Bones - Part 2 > Flashcards

Bones - Part 2 Flashcards

1
Q

Fracture with overlying skin intact

A

Simple

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2
Q

Fracture where bone communicates with skin surface

A

Compound

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3
Q

Fracture where bone is fragmented

A

Comminuted

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4
Q

Fracture where ends of bone at fracture site are NOT aligned

A

Displaced

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5
Q

Slowly developing fracture from increased loads due to physical activity

A

Stress

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6
Q

Fracture that only extends partially through bone

A

Greenstick

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7
Q

Osteonecrosis (Avascular Necrosis)

A

Infarction of bone and marrow

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8
Q

Infarction of bone and marrow

A

Osteonecrosis

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9
Q

What part of bone is usually NOT affected and why with Osteonecrosis

A

Cortex

– collateral blood flow

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10
Q

What usually causes Osteonecrosis?

A

Fractures

Corticosteroid treatment

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11
Q

What usually causes Osteonecrosis?

A

Fractures

Corticosteroid treatment

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12
Q

What shape is a Subchondral Osteonecrosis?

A

Wedge shaped

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13
Q

Will there be pain with Subchondral Osteonecrosis and what may develop?

A

Yes

– secondary osteoarthritis may develop

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14
Q

Will there be pain with Medullary Osteonecrosis?

A

No – usually silent

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15
Q

“Creeping Substitution” with Osteonecrosis

A

Trabeculae is a scaffold for new bone deposition

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16
Q

Osteomyelitis

A

Inflammation of bone and marrow following an infection

17
Q

What pyogenic bacteria can cause Osteomyelitis?

A

Staph Aureus

18
Q

Acute Osteomyelitis

A

Bacteria and neutrophils

19
Q

What can be seen with Acute Osteomyelitis

A

Sequestrum = dead bone following subperiosteal abscess

20
Q

Chronic Osteomyelitis

A

Osteoclastic reabsorption

21
Q

What can be seen with Chronic Osteomyelitis?

A

Involucrum = new bone forms shell of living tissue around devitalized bone

22
Q

Involucrum is seen with?

A

Chronic Osteomyelitis

– new bone forms shell around devitalized bone

23
Q

Mycobacterial Osteomyelitis is usually blood borne. What will be seen histologically?

A

Caseous necrosis

Granulomas

24
Q

Mycobacterial Osteomyelitis is more resistant and destructive. What is an example?

A

Pott Disease (TB) of the spine = compression fractures

25
Q

Congenital skeletal Syphilis

A

Saber shin – bone deposited on anterior tibia

26
Q

Acquired skeletal Syphilis

A

Saddle nose

NMSP - Exam 2 (29 decks)

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