Knee Region Flashcards

1
Q

What are the tendons of the patella

A

Quadriceps (superior) and patellar (inferior)

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2
Q

What are the articulating surfaces of the patella and their relative sizes

A

Lateral and medially articulating surfaces (lateral is larger)

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3
Q

What is the normal direction of a patellofemoral dislocation

A

Laterally

Three muscles to think about here: vastus lateralis,intermedius and medius
The medius counteracts the pull of the other two but it tends to waste away so the patella is pulled laterally more often

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4
Q

What points need to be considered when calculating Q angle

A

ASIS
Midpoint of patella
Tubercle of tibia

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5
Q

What menisci are in the tibiofemoral joint

A

Medial and lateral
Both are wedge shaped
Lateral is more of a circle while medial more c shaped and is less likely to be torn as it is more fixed

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6
Q

What meniscus in the knee is more likely to be torn

A

Lateral

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7
Q

Why do the menisci of the knee heal slowly

A

Vascular supply like synovium

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8
Q

What are the two ligaments of the knee

A

Fibular collateral lig and tibial collateral lig

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9
Q

What is genu varum

A

Knees separated

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10
Q

What is genu valgum

A

Knees together

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11
Q

How do the cruciate ligaments in the knee articulate

A

Posterior comes forward and anterior goes backwards so they cross each other

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12
Q

What is the tension in the cruciate ligaments of the knee when the knee is flexed

A

Anterior is slack and posterior is taut

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13
Q

What is the unhappy triad

A

ACL, medial collateral lig, medial meniscus

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14
Q

Describe the surface anatomy of the suprapatellar bursa

A

Extends 8cm above the base of the patella

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