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Radiographic technique > Forearm, elbow, foot > Flashcards

Forearm, elbow, foot Flashcards

1
Q

What OSCE view is used for Distal radius fracture (Colles)

A

AP, Lateral

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2
Q

What OSCE view is used for a radial head fracture

A

AP, Lateral

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3
Q

What anatomy is involved in a distal radius fracture (Colles)

A

Wrist joints and elbow joints

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4
Q

What anatomy is involved in a radial head fracture

A

Distal 1/3 humerus. Proximal 1/3 of radius and ulna.

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5
Q

What OSCE view is used for a LisFranc midfoot fracture-dislocations, Jones fracture

A

DP, Lateral, Oblique

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6
Q

What anatomy is involved in a LisFranc midfoot fracture-dislocations, Jones fracture

A

Full foot plus distal tibia and fibula

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7
Q

What Wellys exposure/position is used for a radial head fracture

A

AP/Lat - 55 kV 4.0 mAs

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8
Q

What Wellys exposure/position is used for a distal radius fracture

A

AP/Lat - 52 kV 2.5 mAs

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9
Q

What position is used for a radial head fracture

A

AP -Sitting. Arm fully extended and supinated in AP position. Medial and lateral condyles aligned parallel To the detector. Shoulder elbow and wrist in same horizontal plane.

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10
Q

What position is used for a distal radius fracture

A

AP -Forearm fully extended and supine check medial and lateral distances are equal, Lat -All on supine plane, wrist 5° external rotation to bring down styloid process

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11
Q

What is the center point for a distal radius fracture

A

Midway between wrist and elbow

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12
Q

What is the center point for a radial head fracture

A

AP -Midline 2cm distal to epicondyles. Lat -4cm medial to olecranon process

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13
Q

What is the center point for a Lisfranc midfoot fracture dislocations, Jones fracture

A

DP/Obl -Midline at base of 3rd metatarsal Lat -Medial cuneiform at base of 3rd metatarsal

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14
Q

What Welly’s exposure/focus is used for a Lisfranc midfoot fracture-dislocation, Jones fracture

A

DP/Lat/Obl - 55 kV 4.0 mAs

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15
Q

What position is used for a Lisfranc midfoot fracture-dislocation, Jones fracture

A

15° cranially to match the angle of the metatarsals

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16
Q

What Welly’s exposure/focus is used for an ankle

A

AP/Lat/Mortice - 55 kV 5.0 mAs

17
Q

What OSCE view is used for the ankle

A

AP, Lateral, Mortice

18
Q

What anatomy is involved in a Maisonneuve fracture

A

Entire tibia and fibula including knee and ankle joints.

19
Q

What OSCE view is used for a Maisonneuve fracture

A

AP, Lateral

20
Q

What position is used for the ankle

A

AP -Leg extended. Foot dorsi-flexed until plantar aspect of foot is perpendicular to detector. Rotate entire leg (not just foot) so that the 3rd metatarsal is aligned mid-way between the malleoli and at the centre of the light field.

Lat -Patient rolls onto affected side. Knee flexed slightly and supported. Leg is externally rotated until lateral aspectof foot is approx 5° from table-top. Foot
should be supported with a sponge-pad.
Foot is carefully dorsi-flexed if clinically
appropriate and within tolerable limit.
Mortice -Leg extended. Foot dorsi-flexed until plantar aspect of foot is perpendicular to detector.
Medially rotate entire leg (not just foot) 10 – 15 until the medial and lateral malleoli are equidistant from the table top. is aligned mid-way between the medial and lateral malleoli. If the rotation is correct, the 5th metatarsal should be at the mid-point between the malleoli and align with the centre of the light-field.

21
Q

What anatomy is involved in the ankle

A

Full foot and Distal 1/3 tibia and fibula, except phalanx

22
Q

What is the center point for the foot

A

DP/Obl -Midline at base of 3rd metatarsal Lat -Medial cuneiform at base of 3rd metatarsal

23
Q

What is the center point for the ankle

A

AP -Midline at the level of the medial and lateral malleoli. 3 cm proximal to the malleoli. Lat -Medial malleolus. Mortice -Midline at the level of the
medial and lateral malleoli.

24
Q

What OSCE view is used for the knee

A

AP, Lateral

25
Q

What anatomy is involved in the knee

A

Superiorly have included distal 1/3 femur and inferiorly proximal 1/3 tibia and fibula

26
Q

What position is used for the knee

A

AP -lying flat on bed with epicondyles each same distance from the reseptor, may need to rase feet with sponge to keep leg extended with joint space open. Lat -Patient lies on the affected side.
Unaffected leg is flexed, moved beyond the
affected leg and rested on the x-ray table.
Affected knee is flexed 20-30° and rolled into a medio-lateral position until patella-femoral joint is perpendicular to detector.

27
Q

What is the center point for the knee

A

AP - 1.25cm (finger width) distal to apex of patella Lat - 1.25cm distal to the apex of the patella and posteriorly 2.5cm

28
Q

What is the Welly position/focus for the knee

A

AP/Lat - 55 kV 3.2 mAs

Radiographic technique (7 decks)

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