chapter 10 kinesiology of the knee Flashcards

1
Q

Tibiofemoral joint classification

A

uniaxial modified hinge synovial

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2
Q

Tibiofemoral joint articular surfaces

A

medial lateral femoral condyles medial lateral tibial plateaus

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3
Q

Tibiofemoral roll and glide open chain

A

same direction (tibial plateaus moving on convex femoral condyles)

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4
Q

Medial collateral ligament limits what type of force?

A

valgus

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5
Q

Medial Collateral Ligament Deepest fibres attach to _______

A

medial meniscus

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6
Q

medial meniscus Posterior fibres ______

A

blend with joint capsule

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7
Q

Lateral Collateral Ligament (LCL) limits what type of strain

A

varus

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8
Q

does the Lateral Collateral Ligament (LCL) attach to the lateral meniscus or capsule?

A

no

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9
Q

Both the MCL and LCL are ______ ligaments

A

extracapsular

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10
Q

anterior cruciate ligament limits

A

hyperextension

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11
Q

Posterior Cruciate Ligament limits

A

hyper flexion and hyper extension (secondary)

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12
Q

Posterior Cruciate Ligament is a primary stabilizer at ____

A

90 degrees knee flexion

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13
Q

the ACL and PCL are both

A

intracapsular extra synovial

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14
Q

______ ligament is an Extension of semimembranosus tendon

A

Oblique Popliteal Ligament

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15
Q

Oblique Popliteal Ligament limits

A

extension and valgus strain while knee is extended

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16
Q

_____ Attach the menisci to the tibial plateau

A

Coronary Ligaments:

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17
Q

_________
Join the anterior horns of the menisci

A

Transverse Ligament of the Knee:

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18
Q

_________Attach the menisci to the posterior patella

A

Patellomeniscal Ligament:

19
Q

__________ Joins the lateral meniscus to the PCL and medial femoral condyle

A

Posterior Meniscofemoral Ligament

20
Q

_______ Stabilizes lateral meniscus

A

Posterior Meniscofemoral Ligament

21
Q

________O-shaped, more mobile and smaller than medial meniscus

A

Lateral Meniscus

22
Q

_______ Separated from LCL by popliteus tendon

A

Lateral Meniscus

23
Q

__________C-shaped Meniscus

A

Medial Meniscus

24
Q

______ Strong adherence to to MCL, semimembranosus tendon and capsule which limits mobility increasing likelihood of tears

A

Medial Meniscus

25
Terrible Triad of O’Donahue what is torn?
ACL, MCL and medial meniscus all torn
26
Terrible Triad of O’Donahue happens from what stress?
Occurs due to valgus stress with foot planted
27
flexion extension Axis of rotation at the knee is _____ in a superolateral direction
oblique
28
flexion extension at TF joint Due to oblique axis, in full extension the ____lies slightly lateral to _____
tibia , femur
29
During terminal knee extension in non-weight bearing, the______rotates laterally about 20 degrees on the fixed ____
tibia , femur
30
terminal rotation; This rotation of the tibia lodges the tibial intercondylar tubercles into the _________ of the femur
intercondylar fossa
31
________laterally rotates tibia at TF joint
biceps femorisbiceps femoris
32
Biceps femoris and the ITB are primarily responsible for Terminal Rotation of Knee during active knee extension in open kinetic chain
33
During terminal knee extension in weight bearing, the femur rotates ________ on the fixed tibia
medially (internally)
34
In open kinetic chain, the tibia must _____rotate on fixed femur to unlock
medially
35
In closed kinetic chain, the femur must _____rotate on fixed tibia to unlock
laterally
36
______ is responsible for this unlocking of the knee
Popliteus
37
Physiological Valgus Angle when the femoral axis and tibial axes meet at the knee, form an obtuse angle of ____-_____ degrees opening medially
185-190
38
A normal valgus angle transfers ground reaction forces up tibia and equally into ____ and ____ aspects of femur
medial and lateral
39
_____ Angle less than 175 degrees
genu varum
40
______ Results in compressive forces medially & distraction forces laterally
genu varum
41
____ Angle greater than 195 degrees
Genu Valgum
42
Results in compressive forces laterally & distraction forces medially
Genu Valgum
43
_____ Hyperextension of the knees in standing
Genu Recurvatum
44