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511 > cartilage > Flashcards

cartilage Flashcards

1
Q

Intima

A

produce synovial fluid

phago joint debris

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2
Q

stroma

A

irregular connective tissue
blends w fibrous joint
has macro, lympho, mast

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3
Q

capsule
function?
contains?

A

irregular connective tissue
joint stability, vessel/nerve supply
mecohano’s for proprioception

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4
Q

Pacinian

A

sensory nerves

responsive to stretch, tension, pressure

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5
Q

Free nerve endings

A

pressure stretch, temperature pain

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6
Q

Articulated cartilage

contains? function

A

chondrocytes , glychoamino, type II collagen

shock absorption/ gliding

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7
Q

At osteochondral junction, collagen fibres from the ____ zone of calcified cartilage insert directly into the ____ bone

A

radial zone

cortical bone

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8
Q

T or F bones provide some shock absorption

A

true

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9
Q

T of F osteoporosis is not protective against OA development

A

false it is

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10
Q

the phyis

A

plate of proliferating cartilage during growth

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11
Q

Osteochondrosis

A

physis inflamed due to overuse/ biomechs

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12
Q

How is cartilage healing in synovial joints

A

limited not much blood

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13
Q

in adults defects larger than 2mm heal?

A

rarely

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14
Q

can any defects heal by local proliferation of chondros

A

very small ones

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15
Q

if defect extends to bone what happens?

A

inflammatory repair can occur (secondary healing)

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16
Q

Secondary healing

A

healing by formation of scar tissue

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17
Q

primary healing

A

local proliferation of chondros

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18
Q

Acute chondrol injuries in synovial joints

A

an acute mechanical disruption of articular cartilage

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19
Q

Types of acute chondrol injuries in synovial joints

A

Type 1, 2, 3, 4

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20
Q

Type 1

result of?

A

shearing force through cartilage

rotational injury

21
Q

Type 2

result of?

A

compression
rotational force
bruised MRI
flattening on center or blister sometimes

22
Q

Type 3

result of

A

rotational
can’t alway recall what they did
present similar to meniscus tear (catch lock)

23
Q 
Type 4
where?
who
similar to
what
A

tidemark (between calcified n non calc cart)
adults
osteochondritis
loose cartilage fragments catch n lock

24
Q

risk factors for chondrol injuries

A

athletes, trauma to joint, age

25
Q

T/F 100% of patients who’s ankles dislocated had chondrol lesion

A

true

26
Q

Pathophysiology of chondrol issues

A

acute overload of cart
increased loading of chondro
associated joint injury

27
Q

Why is patho of chondrol issues progressive

A

lack healing
increased tension/sheer forces across lesion
inflammation leads to abnormal envior

28
Q

signs n symptoms chondrol issues

A

asymptomtic
pain, mm spasm, swelling, catch n lock
identified with another injury
if a joint sprain is painful or swollen longer than normal

29
Q

diagnostic tests chondrol

A

xray MRI

30
Q

treatment chondrol

A

<2 treated conservatively

>2 mosiacplasticity, subchondrol drilling, periosteal transplant

31
Q

PT on chondrol

A 
specific to procedure
passive motion 
non weight bearing
POLICE
stim
up range and load with surgeon
32
Q

OA

A

cell matrix softening

loss of art cartilage

33
Q

Primary OA

A

mechanical (BMI, job), age, predisposition

34
Q

Type of secondary OA

A

crystal deposition disease

35
Q

crystal disposition disease types

A

gout

pseduogout

36
Q

epi of oA

A

adults

37
Q

Risk factors OA

A

physically demanding job (knees , joints), athletes

age, BMI, biomechanics

38
Q

soft tissue changes OA

A

lax ligs or stiffness, pain, instability

39
Q

patho OA

A

gradual, cartilage damaged, bony changes (loose bodies), decreased ROM, pain

40
Q

diagnostic tests OA

A

specific for joints

41
Q

knee OA test

A 
greater than 50
morning stiffness less than 30 minutes
crackling
bondy tenderness
bony englargement
no warmth at joint
42
Q

hemophilia
from?
leads to?

A 
heredity or spontaneous 
coagulation impaired (leads to uncontrolled bleeding, cart breakdown)
43
Q

crystal deposition disease involves

A

deposition of crystals in joint cartilage / legs

can lead to secondary OA

44
Q

Gout
who
diagnose

A

middle age men/w

blood test for urate

45
Q

pseduogout
type of crystal
risks
diagnosed

A

pyrophospate
both sexes, age related
age, injury, fam
MD, X-ray

46
Q

is gout curable

A

yes with urate lowering treatment

47
Q

most common inflammatory arthorpathy

A

gout

48
Q

treat gout and p gout

A

NSAID, corticosteroids, ULT,
rest
educaiton

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