cartilage Flashcards

(48 cards)

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
T/F 100% of patients who's ankles dislocated had chondrol lesion
true
26
Pathophysiology of chondrol issues
acute overload of cart increased loading of chondro associated joint injury
27
Why is patho of chondrol issues progressive
lack healing increased tension/sheer forces across lesion inflammation leads to abnormal envior
28
signs n symptoms chondrol issues
asymptomtic pain, mm spasm, swelling, catch n lock identified with another injury if a joint sprain is painful or swollen longer than normal
29
diagnostic tests chondrol
xray MRI
30
treatment chondrol
<2 treated conservatively | >2 mosiacplasticity, subchondrol drilling, periosteal transplant
31
PT on chondrol
``` specific to procedure passive motion non weight bearing POLICE stim up range and load with surgeon ```
32
OA
cell matrix softening | loss of art cartilage
33
Primary OA
mechanical (BMI, job), age, predisposition
34
Type of secondary OA
crystal deposition disease
35
crystal disposition disease types
gout | pseduogout
36
epi of oA
adults
37
Risk factors OA
physically demanding job (knees , joints), athletes | age, BMI, biomechanics
38
soft tissue changes OA
lax ligs or stiffness, pain, instability
39
patho OA
gradual, cartilage damaged, bony changes (loose bodies), decreased ROM, pain
40
diagnostic tests OA
specific for joints
41
knee OA test
``` greater than 50 morning stiffness less than 30 minutes crackling bondy tenderness bony englargement no warmth at joint ```
42
hemophilia from? leads to?
``` heredity or spontaneous coagulation impaired (leads to uncontrolled bleeding, cart breakdown) ```
43
crystal deposition disease involves
deposition of crystals in joint cartilage / legs | can lead to secondary OA
44
Gout who diagnose
middle age men/w | blood test for urate
45
pseduogout type of crystal risks diagnosed
pyrophospate both sexes, age related age, injury, fam MD, X-ray
46
is gout curable
yes with urate lowering treatment
47
most common inflammatory arthorpathy
gout
48
treat gout and p gout
NSAID, corticosteroids, ULT, rest educaiton