Knee Flashcards
(35 cards)
True or false: tibiofemoral dislocations are usually classified based on the direction the TIBIA is displaced in.
TRUE
The most common MOI for an anterior tibiofemoral dislocation is…
hyperextension injuries
The ACL is M/C injured during a blow to which side of the knee? But the ligament M/C damaged by a blow to this side of the knee is ___.
lateral side of the knee
the MCL!
it will likely injure both
Posterior tibiofemoral dislocations are M/C when there is a blow to the tibia while the knee is ____
flexed
Patellar dislocations M/C occur in a ___ direction
lateral
Q angle is ~_ in men and ~_ in women
men: 12*
women: 18*
An increased angle would have what effect on the position of the femur and the joint space between the tibia & femur?
proximal femur will be more lateral,
increased joint space between the medial sufaces of the femur and tibia
Femoral anteversion would see an increase in __ rotation of the femur
internal
Femoral retroversion would see an increase in the ___ rotation of the femur
external
Genu recurvatum is AKA
hyperextended knees
Describe:
squinting patellae
camel sign
frog eyed patellae
squinting patellae: point inward
camel sign: abnormally high sometimes d/t inflamed infrapatellar bursa
frog eyed patellae: point outward
There is ___x your body weight loaded on the patella when you climb stairs, vs. __x when simply walking.
Walking: 0.3x
Stairs: 2.5
The medial side of the tibia is ___ and the lateral is ___ from anterior to posterior.
medial: concave
lateral: convex anterior to posterior
The medial meniscus is __ shaped and thicker ____
C-shaped, thicker posteriorly
The lateral meniscus is __ shaped with equal thickness throughout
O shaped
Both menisci in the knee are partly vascular in the ____ portion
outer 1/3rd
The menisci are held in place by ____ ligaments attaching to the tibia
coronary
The menisci glide ___ during extension and ___ during flexion.
anteriorly
posteriorly
The ACL attaches from the ___ to the ____
anterior intercondylar area to the medial aspect of the lateral femoral condyle
The PCL runs from the ___ to the ___
extreme posterior intercondylar area of the tibia to the lateral aspect of the medial femoral condyle
The MCL runs from the ___ to the ___ with deep capsular fibres attaching into the ____.
medial epicondyle of the femur, to the medial aspect of the tibia,
medial meniscus
The MCL prevents…
anterior displacement of the tibia on the femur
The popliteus tendon runs between the ___ and the LCL.
lateral meniscus and the LCL
The ____ joint contains the largest layer of cartilage in the body
patellofemoral joint