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Surgery > Orthopedics > Flashcards

Orthopedics Flashcards

1
Q

Woven bone

A

Pathologic

Immature

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2
Q

Mature or normal bone

A

Lamellar

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3
Q

Bone resorption

A

Osteoclast

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4
Q

Maintains bone

Calcium and phosphorous homeostasis

A

Osteocyte

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5
Q

Builds the bone

A

Osteoblast

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6
Q

99% of Ca sequestered in bone

1% of Ca is in

A

ECF

50% free
50% bound with albumin

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7
Q

Prevent bone loss by inhibiting osteoclast resorption

A

Bisphosphonate

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8
Q

Bisphosphonate CI

A

Renal disease

Excretion

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9
Q

Bisphosphonate use may predispose to

Alendronate, Zonendronate

A

Jaw osteonecrosis

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10
Q

Drug that inc deposition of new bone by osteoblast and reduces resorption of bone osteoclast

A

Strontium ranelate

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11
Q

Recombinant protein form of parathyroid hormone

Effective anabolic agent for osteoporosis inc bone mass

A

Teriparatide

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12
Q

Stimulates osteoclast

Bone resorption

A

PTH

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13
Q

Stimulates osteoclast by stimulator

A

Osteoblast

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14
Q

Osteoblasts stimulate osteoclast by

A

RANKL

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15
Q

Type 1 collagen

A

Bone skin tendon

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16
Q

Type 2 collagen

A

Cartilage

17
Q

Type 3 collagen

A

Reticulin

Blood vessel

18
Q

Type 4 collagen

A

Basement membrane

19
Q

Annulus fibrosis is a type collage

A

1

20
Q

Nucleus pulposus is collagen

A

Type II

21
Q

Inc thoracic curvature

A

Kyophotic

22
Q

Exaggerated curvature of lumbar spine

A

Lordosis

23
Q

Cartilage model formed and replaced to bone

A

Endochondral bone formation

24
Q

Direct bone formation

A

Intramembranous ossification

25
Q

Slow ox fibers

A

Red fibers

26
Q

First muscle type lost in rehab

A

Type 1 red

27
Q

Fast glycolitic fiber

A

Type II

28
Q

Type 1 osteoporosis

A

Post menopausal

29
Q

Type 2

A

Old patients

Fracture

30
Q

Selective estrogen receptor modulators

A

Estrogen agonist or antagonist depending on binding

Tamoxifen
Raloxifen

31
Q

wear and tear arthritis

A

osteoarthritis

32
Q

Radio findings of OA

A

Subchondral cyst
Osteophytes
Joint space narrowing
Eburnation

33
Q

Most common primary sarcoma of bone

Lung metastasis

A

Osteosarcoma

34
Q

Osteosarcoma radio

A

Sun burst of hair end pattern

Codmann’s triangle

35
Q

Small round cell sarcoma

A

Ewing’s

36
Q

Second most common malignant bone tumor in children

A

Ewing sarcoma

37
Q

Moth eaten appearance

Onion skin and sunburet appearance

A

Ewing sarcoma

Surgery (17 decks)

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