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Imaging Flashcards

1
Q

Best view for Spondylolyis?

What are you looking for?

A

Oblique view

Scottie Dog

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2
Q

Best view for Spondylolistesis?

A

Static view: Lateral

Dynamic: Flexion/Extension

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3
Q

Best view for Dens fracture?

A

XRay:Open mouth odontoid view and lateral C-spine

CT: Sagittal reconstructions most sensitive

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4
Q

Rib Fracture

A

XRay: Difficult to detect

Bone Scan: Most sensitive

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5
Q

Best view for lower cervical spine fracture?

A

Swimmer’s view

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6
Q

Best view for clavicle fracture?

A

Preferred study: 10 degrees cephalic tilt

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7
Q

Glenoid Fracture?

A

Bony Bankart: West Point Axillary

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8
Q

Scapular fractures

A

CT is most helpful

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9
Q

Best view for subacromial impingement

A

Scapular outlet view

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10
Q

AC Joint Separation

A

Bilateral AP XRays with both shoulders on same plane

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11
Q

Hill-Sachs Lesion

A

Preferred study: Stryker notch view & Axillary lateral view

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12
Q

Anterior humeral dislocation

A

Best: Axillary lateral view

Followed by: Scapular Y lateral view

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13
Q

Posterior humeral dislocation

A

AP and scapular Y views

*can be deceptive

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14
Q

Elbow fractures

A

XRays: AP/Lateral/Oblique of elbow

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15
Q

Wrist: Colles fracture

A

XRay: dinner fork deformity

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16
Q

Wrist: Smith fracture

A

XRay: AP/Lat/Obilique of wrist

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17
Q

Hand: lunate dislocation

A

Oblique/AP/Lateral views

18
Q

Scaphoid fracture

A

AP/Lat/Oblique - may be negative initially

  • repeat XRays in 10 days
  • MRI can detect occult fracture
19
Q

Hamate fracture

A

Most sensitive: Carpal tunnel view

*CT can be helpful

20
Q

Pelvic fracture

A

XRays: AP/Inlet/Outlet

CT: most sensitive

21
Q

Acetabular fracture

A

Judet views: AP/iliac/obturator view

CT: for complex fractures

22
Q

Hip fracture or dislocation

A

AP/ cross table lateral

23
Q

Patellar fracture

A

XRay: AP/lateral/sunrise

Lateral view most helpful

24
Q

Patellar subluxation

A

Sunrise or merchant view

25
Tibial plateau fracture
XRay: AP/lateral/15 degree tilt oblique *CT for operative planning
26
Osgood Schlatter's
AP/Lateral Lateral will show fragmentation of apophysis
27
Stress fracture (shin splints)
AP/Lateral Lateral will demo cortical reaction in severe fracture MRI: most sensitive Bone Scan: helpful
28
Ankle Instability
Xray: AP/Lateral/Mortise; Stress Views
29
Jones fracture
Oblique View of the foot MRI & Bone Scan utilized
30
Most common type of Salter Harris fracture types?
Type II
31
Ottawa Ankle Rules
Unable to walk 4 steps immediately or in ER IF Ankle pain present Tenderness over the posterior 6cm of lateral or medial mallelous AND/OR IF Midfoot pain is present Tenderness over the navicular or base of the 5th metatarsal
32
Ottawa Knee Rules
Age >55 OR Isolated tenderness of the patella OR Tenderness of head of fibula OR Inability to flex knee to 90 degrees OR Unable to bear weight immediately or in the ER
33
Canadian C-Spine Rules: High Risk Factors
Age >65 years old OR Dangerous mechanism - fall from elevation greater than 3 feet or 5 stairs - Axial load to the head - MVC high speed (>100 km/hour) - Motorized rec vechiles - Bicycle struck or collison OR Paresthesias in extremities
34
What sign on XRay would you see in an elbow fracture?
Fat Pad displacement - displacement of any of the fat pads may indicate an occult fracture - displacement of the posterior olecranon pad is almost always associated with a fracture - typically radial head fracture in adults & intracondylar fracture in children
35
Segond fracture
- avulsion fracture of the lateral tibia condyle | - sometimes seen on XRay after an ACL injury
36
What zone of a proximal 5th metatarsal is at risk for non-union?
Zone 2 Treatment: - cast immobilization for 6-8 weeks OR -Early fixation in some athletes
37
What imaging is recommended for a SLAP lesion?
MR Arthrogram
38
What images make a complete trauma series for shoulder dislocations?
- True AP - Scapular Y - Axillary Also helpful: - Stryker view: shows hill sachs lesion - West Point view: shows glenoid bone loss
39
After an ACL injury: what may you see on XRay?
- notch width index - Osteochondral fracture - Segond fracture - Bone bruise (MRI) - most common site is over the lateral femoral condyle
40
Best XRay view of syndesmotic ankle sprain
Mortise view in unilateral stance

SCS (36 decks)

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