7 (M) Knee Flashcards

1
Q

Nerve that wraps around neck of fibula

A

Common fibular

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2
Q

Sciatic nerve branches

A

Tibial nerve

common fibular

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3
Q

Posterior thigh arterial supply

A

Deep femoral artery

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4
Q

Superiomedial border of the popliteal fossa

A

Semimembranosus + semitendinosus

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5
Q

Lateral border of the popliteal fossa

A

biceps femoris

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6
Q

inferiomedial border of the popliteal fossa

A

Medial + lateral heads of gastrocnemius

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7
Q

Roof of popliteal fossa

A

popliteal fascia

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8
Q

Floor of popliteal fossa

A

knee joint capsule, distal femur, proximal tibia, (popliteus muscle)

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9
Q

Which superficial vein drains into the popliteal vein

A

Small saphenous

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10
Q

What kind of joint is the knee?

A

Synovial hinge joint

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11
Q

Are the surfaces of the knee congruent

A

No => incongruent

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12
Q

What kind of bone is the patella?

A

Sesamoid bone

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13
Q

bipartite patella =

A

Patella is split into 2 bones instead of 1

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14
Q

Patella disclocation is more common in …

A

females > males

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15
Q

Which direction does the patella dislocate in?

A

Laterally

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16
Q

What 2 measures prevent patella disclocations?

A

Vastus medialis pulling patella medially

Lateral femoral condyle projecting anteriorly

17
Q

In what movement is the knee most stable?

Why (2)

A

During extension

=> Most congruent
=> most stable

18
Q

What ligaments + tissue are found to tear with eachother?

A

Medial meniscus + tibial collateral ligament => as they are bound together

19
Q

Anterior + posterior cruciate ligaments attach to what area

A

Intercondylar area

20
Q

Anterior cruciate ligament prevents ….

A

anterior displacement of tibia on femur

21
Q

Posterior cruciate ligament prevents …

A

posterior displacement of tibia on femur

22
Q

Which ligament stabilises the flexed knee when weight bearing –> walking down stairs

A

Posterior cruciate ligament

23
Q

how are cruciate ligaments typically injured

A

Hyperextension w/rotation

24
Q

What kind of rotation occurs when the knee is reaching full extension?

A

small degree of medial rotation

25
unlocking the knee is what type of rotation? What causes it
Lateral rotation Popliteus
26
Genicular arteries around the knee stem from what artery?
Popliteal
27
As the knee approaches full extension, the medial femoral condyle undergoes a few degrees of medial rotation on the tibia. Is this statement true or false?
yes
28
If there is a normal response to the patella strike which of the following spinal segments are intact?
l2 - l4
29
PCL does what
It stabilises the flexed, weight-bearing knee
30
Thrombus in which vein would lead to a swollen red calf
Popliteal