Knee! Flashcards
(25 cards)
take a netter quiz on leg muscles
give yourself a 1 on this card
who gets more ACL tears?
Ladies
Major knee flexors
Biceps Femoris, Semitendinosus, Semimembranosus
major knee extensors
quadriceps femoris, rectus femoris, vastus lateralis, vastus medialis oblique, iliotibial band
What combines into the pes an scrinus
Sartorius, Gracilis, Semitendinosus
hamstring
semitendinosus, semimembransosus, biceps femoris
patellar dislocation tends to be
lateral
i just saw a patellar dislocation
immediate reduction is ok
common popliteal problem
Baker’s Cyst
4 common knee radiograph views
AP weight bearing
AP non weight bearing
Lateral
Sunrise
bony sclerosis
whitening on xray where bones have been rebuilt due to lots of rubbing
What that PCL do?
prevents excessive internal rotation, guides during flexion
What that ACL do?
Stops excessive internal rotation, stabilizes in full extension, prevents hyperextension
What that MCL do?
Restraint to valgus stress
What that LCL do?
Restraint to varus stress
knee degrees of flexion
140
big question for knee injury
did you hear a pop or snap?
one good sign of knee joint effusion
ballottable patella
Test them MCL and LCL, son
valgus and varus stress test
test that ACL, dogg
Drawer test (with foot both externally and internally rotated), Lachman’s test
Lachman’s test
at 30 degrees of flexion, hold femur tight, push it dorsally, pull tibia anteriorly, looking for solid endpoint to movement
Test that PCL
posterior drawer test
test them meniscuses
McMurray’s meniscal test, fully flex and extend with foot internally and externally rotated, load joint by holding foot with your armpit
Positive McMurray
popping or clicking or locking
