W5- Knee Radiologic Evaluation Flashcards

1
Q

What are the (6) types of patellar fractures?

A
  • Vertical
  • Transverse nondisplaced
  • Transverse displaced
  • Comminuted nondisplaced
  • Comminuted displaced
  • Avulsed fragments
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2
Q

What are the (6) types of distal femur fractures?

A
  • Nondisplaced
  • Impacted
  • Displaced
  • Comminuted
  • Condylar
  • Intercondylar
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3
Q

What are the (6) types of tibial plateau fractures?

A
  • Split
  • Split-depression
  • Central depression
  • Split fracture, medial plateau
  • Bicondylar fracture
  • Dissociation of metaphysis and diaphysis
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4
Q

What are the (4) types of chondral fractures?

A
  • Osteochondral body, intact articular cartilage
  • Osteocartilaginous flap
  • Detached osteochondral fragment
  • Detached osteochondral fragment in joint
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5
Q
  • What is a Segond Fx?

- What is it usually indicative of?

A
  • lateral tibial plateau avulsion fx

- usually indicative of ACL tear (75%)

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6
Q

Are most knee dislocations medial or lateral?

A

Lateral (95%)

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7
Q

What is a multipartite patella?

A

Multipartite patella is an uncommon congenital abnormality that represents normal variant pathology and is a result of a failure of ossification during development.
-Can also happen after a Fx that doesn’t heal all the way.

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8
Q

What is a tibial spine avulsion Fx usually indicative of?

A

ACL injury

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9
Q

What is the sesamoid bone is posterolateral capsule of the knee?

A

Knee fabella

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10
Q

What are some characteristic findings of OA? (5)

A
  • genu varum
  • diminished cartilage space
  • lateral patellar movement
  • osteophyte
  • increased sclerosis
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11
Q

What are the Ottowa Knee Rules?

A
  • Age >55
  • Tenderness at patella
  • Tenderness at fibular head
  • Inability to flex to 90 degrees
  • Inability to bear weight for 4 steps
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