Knee special tests Flashcards

1
Q

What is the purpose of Anterior drawer test

A

instability of the ACL

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2
Q

How is the anterior drawer test performed

A
patient sat or laying down
knee 90 degree flexion
sit on foot of bent knee
hands placed either side of patella
tiba drawn forwards feeling for anterior translation
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3
Q

what makes a positive anterior drawer test?

A

increased anterior exertion of medial tibial condyle

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4
Q

What is the purpose of the Lachmans test

A

Instability of ACL

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5
Q

How is the Lachmans test performed

A
patient on back 
rehab placed bent knee under clients knee 
one hand fixed ontop of the patella 
other hand under top of the calf
rehab drawers calf upwards
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6
Q

what makes a positive lachmans test

A

increased anterior exertion of tibia on femur

change in end feel indicates significant injury

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7
Q

what are the two tests used for ACL

A

Lachmans

Anterior drawer

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8
Q

Name the 8 tests for the knee

A
anterior drawer
lachmans 
posterior drawer 
posterior sag
McMurrays
Thessalys 
Valgus stress test
Varus stress test
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9
Q

What is the purpose of the posterior drawer test

A

instability of PCL

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10
Q

How is the posterior drawer test performed

A
patient sat or laying down
knee 90 degree flexion
sit on foot of bent knee
hands placed either side of patella
tiba drawn backwards feeling for posterior translation
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11
Q

what makes a positive Posterior drawer test

A

increased posterior exertion of tibia on femur

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12
Q

Whats the purpose of the posterior sag

A

detect PCL instability

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13
Q

How is the posterior sag test performed

A

patient on back

knee 90degress flexion and hip 90 degree flexion looking for posterior translation

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14
Q

what makes a positive posterior sag test

A

posterior translation

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15
Q

What is the purpose of the McMurrays test

A

determine medial / lateral meniscal injury

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16
Q

how is the McMurrays test performed for medial meniscal injury

A

patient on back
one hand on top of patella holding it between thumb and finger applying varus force
other hand holding heel in heel of hand
slowly extend the knee while laterally rotating

17
Q

How is the McMurrays test performed for lateral meniscal injury

A

patient on back
one hand on top of patella holding it between thumb and finger applying valgus force
other hand holding heel in heel of hand
slowly extend the knee while medially rotating

18
Q

What determines a positive McMurrays test?

A

reproduction of symptoms

pain

19
Q

what is the purpose of Thessalys test

A

detect meniscal injury

20
Q

How is the thessalys test performed

A

standing on one leg
bend knee 20 degree flexion
rotate femur across body and back several times
external and internal rotation repeated

21
Q

what makes a positive Thessalys test?

A

pain
apprehension
locking

22
Q

what is the purpose of the Varus stress test?

A

pain / laxity LCL injury

23
Q

How is the Varus stress test performed

A

leg lifted and rests between rehabbers hip and arm
one hand hold lateral side of leg below the knee
other hand applied pressure on the medial side forcing the ligament to open up

24
Q

what makes a positive Varus stress test?

A

knee pain =lcl injury

normal end feel/ resistance to varus stress = intact ligament

25
Q

What is the purpose of the vaalgus stress test?

A

Pain/ Laxity MCL

26
Q

How is the Valgus stress test performed ?

A

leg lifted and rests between rehabbers hip and arm
one hand hold lateral side of leg below the knee
other hand applied pressure on the lateral side forcing the ligament to open up

27
Q

what makes a positive valgus stress test?

A

knee pain = MCL injury

normal end feel/ resistance to valgus stress = intact ligament