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M&M Test 2 > B6-073 Joint Injury > Flashcards

B6-073 Joint Injury Flashcards

1
Q

fibers run posterior lateral

A

ACL

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2
Q

fibers run anterior medial

A

PCL

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3
Q

prevents anterior translocation of the tibia and provides rotational stability

A

ACL

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4
Q

prevents posterior translocation of the tibia and helps provide varus/valgus stability

A

PCL

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5
Q

restrains valgus stress

A

MCL

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6
Q

restrains varus stress of knee

A

LCL

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7
Q

the medical meniscus attaches to

A

MCL

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8
Q

optimizes force transmission by increasing contact area

A

meniscii

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9
Q

what structures make up the posterior lateral corner?

A

popliteus tendon
LCL
popliteo-femoral ligament

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10
Q

controls external rotation, varus, and posterior translation of leg

A

posterior lateral corner

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11
Q

most sensitive test for ACL tear

A

lachmans

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12
Q

patient knee bent at 20-30 degrees
pull tibia anterior

what test is this describing?

A

lachmans

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13
Q

laxity at 30 in valgus stress indicates injury to

A

MCL

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14
Q

laxity at 0 in valgus stress indicates injury to

A

MCL and ACL/PCL

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15
Q

laxity at 30 in varus stress indicates injury to

A

LCL

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16
Q

laxity at 0 in varus stress indicates injury to

A

LCL and ACL/PCL

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17
Q

LCL injury is commonly accompanied by injury to the

A

posterior lateral corner

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18
Q

test to evaluate PLC

A

dial test

positive is greater than 10 degrees of asymmetry

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19
Q

asymmetry at 30 degrees in Dial test indicates

A

PLC injury

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20
Q

asymmetry at 30 and 90 in Dial test indicated injury to

A

PLC and PCL

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21
Q

most sensitive exam finding for meniscus tear

A

joint line tenderness

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22
Q

tests for meniscal tears [3]

A

mcmurrays
apleys
thessaly

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23
Q

unhappy triad

A

MCL
ACL
medial mensicus tear

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24
Q

caused by valgus force with tibial anterior translocation and external rotation

A

unhappy triad

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25
Q

unhappy triad causes a kissing contusion between [..] and […]

A

lateral femoral condyle
posterior lateral tibial plateu

26
Q

ATFL is being stretched when the ankle is […] flexed

A

plantar flexed

**relaxed with dorsiflexion

27
Q

achilles is being stretched when the ankle is […] flexed

A

dorsiflexed

**relaxed with plantar flexion

28
Q

plantar/dorsiflexion of the ankle occurs at what joint?

A

tibiotalar

29
Q

inversion/eversion of the foot occurs at what joint

A

subtalar (talocalcaneal)

30
Q

what two joints make up the transverse tarsal joint?

A

talonavicular
talocuboid

31
Q

restrains inversion while in plantar flexion

A

ATFL

32
Q

weakest ligament of the lateral ankle

A

ATFL

33
Q

restrains inversion when neutral or dorsiflexion

A

calcaneofibular ligament

34
Q

prevents subtalar inversion

A

calcaneofibular ligament

35
Q

prevents posterior talar displacement

A

posterior talofibular

36
Q

ankle anterior drawer test assesses the integrity of

A

ATFL

37
Q

talar tilt (inversion stress) assesses the ingetrity of

A

calcaneofibular ligament

38
Q

resists eversion of the hindfoot

A

deltoid ligament

39
Q

restrains valgus tilting of talus

A

deltoid ligament

40
Q

ligaments of ankle syndesmosis [4]

A

AITFL
PITFL
TTFL
interosseous membrane

41
Q

maintains the integrity of the mortise

A

ankle syndesmosis

42
Q

tests to assess ankle syndesomosis [3]

Bonus points: what ligament are they stressing?

A

eversion stress- deltoid
squeeze test- pain at syndesmosis
external rotation stress- AITFL

43
Q

eversion stress tests assesses function of

A

deltoid

44
Q

squeeze test assesses function of

A

syndesmosis

**pain eillicited is positive

45
Q

external rotation stress test of ankle assesses function of

A

AITFL

46
Q

indications for ankle imaging according to Ottawa ankle rules:

A

if tenderness is felt at
-posterior edge of lateral mal
-base of 5 MTP
-navicular
-posterior edge of medial mal

get Xrays, more likely for fx

47
Q

getting weight bearing X rays is crucial for evaluation of

A

syndesmosis

48
Q

ACL tear is diagnosed on exam with what tests?

A

anterior drawer
Lachman’s (more sensitive)

49
Q

ACL functions to

A

prevent anterior translation of the tibia relative to the femur

50
Q

a blow to the anterior tibia with a flexed knee can cause a tear in

A

PCL

**like knee against dashboard in MVC

51
Q

the PCL functions to

A

prevent posterior translation of the tibia

52
Q

the PCL originates from the

A

medial femoral condyle

53
Q

what tests would you expect to be positive when evaluating a high ankle sprain?

A

eversion stress test
external rotation stress test
squeeze test

54
Q

pain illicited from the squeeze test indicates

A

injury to syndesmotic complex

55
Q

LCL injuries can be associated with injuries to the

A

PLC

56
Q

structures of PLC

A

popliteus tendon
popliteofibular ligament

57
Q

positive Dial test at 30 degrees suggests injury to

A

PLC

58
Q

positive Dial at 90 degrees suggests injury to

A

PLC and PCL

59
Q

pain and increased laxity of valgus stress at 30 degrees indicates

A

isolated MCL tear

60
Q

pain and increased laxity of valgus stress at both 0 and 30 degrees indicates

A

MCL + ACL/PCL tear

61
Q

lateral translation of the talus on Xray indicates damage of what structure?

A

deltoid

62
Q
A

M&M Test 2 (18 decks)

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