Knee Lab Flashcards
which impairment is suspected with delayed swelling (6-12 hr)?
synovitis (microtrauma)
which impairment is suspected with immediate swelling (1-2 hr)?
hemarthrosis (macrotrauma; torn ligament)
crepitus is often associated with _____ dysfunction
patella femoral joint
what is suspected with locking of the knee?
meniscus or loose body
what is suspected with giving out of the knee?
ligament instability
muscle weakness
meniscal tear
chondromalacia patella
loose body
what must always be asked with a knee complaint?
MOI!!!!!*****
what impairment is suspected with the following MOI? valgus or varus stress
collateral ligament injury
what impairment is suspected with the following MOI? injury with a combo of directions
unhappy triad (ACL, MCL, medial meniscus)
what impairment is suspected with the following MOI? twisting
meniscus
what impairment is suspected with the following MOI? hyperextension
ACL
PCL
meniscus
what impairment is suspected with the following MOI? repeptive stresses
tendons
PFJ
stress fx
meniscus
what is suspected? pain with prolonged sitting
PFPS
what is suspected? stiff in AM, better with activity throughout the day, worse in PM
OA
Ottawa knee decision rule for x-ray
age >55
tenderness at fibular head
isolated tenderness of patella
inability to flex knee to 90
inability to WB & take 4 steps
+ 2/5 = imaging
Pittsburg knee decision rule for x-ray
history of blunt trauma or fall
inability to WB or take 4 steps
age <12 or >50
trauma + 1 other = imaging
knee decision rule of Bauer for x-ray
inability to WB and take 4 steps
presence of knee effusion
presence of ecchymosis (bruising)
1/3 = imaging
knee flexion occur with tibial ___
IR
(extension with ER)
Knee ROM norms
flexion 140
extension 0-15 hyper
IR 20-30
ER 30-40
how is joint play for knee extension performed?
anterior glide (supine or prone)
in open pack - 20 deg flexion
how is joint play for knee flexion performed?
posterior glide (sitting or supine)
open pack - 20 deg flex
how is joint play for knee extension performed at the patella? flexion?
extension - superior
flexion - inferior
if a pt is missing the last 5-10 deg of extension, flexion, or DF, which joint play should be assessed?
proximal tibiofibular
which special test for the knee has the best psychometrics?
Thessaly
position of knee for Lachman vs. anterior drawer
Lachman - 30 deg flexion
anterior drawer - 60 deg flexion
what does the pivot shift assess?
ACL and ALRI
special tests for ACL
Lachman
anterior drawer
pivot shift
special tests for PCL
posterior drawer
posterior sag sign
valgus stress at 0 deg
special tests for MCL
valgus stress test
special tests for LCL
varus stress test
special tests for meniscus
McMurray
Thessaly
Apley
special tests for patella
patellar apprehension
patellar grind test
special test for anteromedial rotary instability
anterior drawer with ER
special test for anterolateral rotary instability
anterior drawer with IR
pivot shift
special test for posteromedial rotary instability
posterior drawer with IR
special test for posterolateral rotary instability
posterior drawer with ER
reverse pivot shift
Dial test
structure targeted with valgus stress test at 0 deg vs 20 deg?
0 - PCL
20 - MCL
how to target medial meniscus with McMurray test?
passively rotate tibia into full ER while passively extending the knee
how to target lateral meniscus with McMurray test?
passively rotate tibia into full IR while passively extending the knee
which structure is suspected if pain is worsened with distraction during Apley’s test?
ligament
which structure is suspected if pain is relieved with distraction during Apley’s test?
meniscus
which structure is suspected if pain is worsened with compression during Apley’s test?
meniscus
what is the knee position for Thessaly’s test?
5 deg and 20 deg
what does patellar apprehension test assess?
patellar instability (lateral sublux)
position for patellar apprehension test?
slightly closed pack
activity limitations and participantion measures for knee
TUG
30 sec STS
6MWT
stair measure test (ascend/descend 9 steps)
which diagnosis responds well to knee distraction?
OA
for knee extension (OKC):
_____ glide of tibia
____ glide of femur
____ rotation of tibia
anterior - tibia
posterior - femur
ER
for knee flexion (OKC):
_____ glide of tibia
____ glide of femur
____ rotation of tibia
posterior - tibia
femur - anterior
IR
