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23 Cards in this Set
- Front
- Back
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what are the 4 view of the ankle?
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AP, AP mortise, Ap 45 degree oblique, mediolateral
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tech factors for all ankles?
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60 @ 4
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part position for the AP ankle?
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leg fully extended. foot in natural position. place foot in true ap.
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where do you CR for an AP ankle?
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mid ankle jt
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evaluation criteria for an AP ankle?
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distal end of tib fib, talus, proximal metatarsals, base of 5th. medial mortise open and lateral mortise closed. |
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what are the true indications that the image is an AP image?
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medial mortise open and lateral mortise closed
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pt position for the AP oblique mortise view?
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full extended leg is rotated internally 15-20 degrees with foot in natural position
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want the _______ line parallel to the plane of the film for the AP mortise view
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intermalleolar
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where to we center on an AP mortise view?
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mid ankle jt
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evaluation criteria for the AP mortise view?
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distal end of tib fib, talus, proximal metatarsals. entire mortise joint open.
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pt position for 45 degree AP oblique?
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from extended leg position rotate the leg internally 45 degrees and dorsiflex the foot
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is it a must or not a must that we dorsiflex the foot on a 45 degree AP oblique? why?
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yes. because then the distal fibula will clear the calcaneus and open up the distal tibiofibular joint
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where do we center for a 45 degree AP oblique ankle?
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mid ankle jt
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evaluation criteria for a 45 degree AP oblique ankle?
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distal end of the tib fib, talus, proximal metatarsals, base of the 5th. distal tibiofibular jt open. medial mortise joint closed. lateral malleolus does not superimpose the calcaneus.
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pt position for the mediolateral ankle?
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roll the leg and ankle to the lateral side and dorsiflex the foot to pur the plantar surface perpendicular to the film.
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where do we center for a mediolateral ankle?
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medial malleolus
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evaluation criteria for the mediolateral
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distal fibula should superimpose 1/2 of the posterior portion of the tibia. need the base of the 5th.
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whats fractured for a bi-malleolar fx?
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medial malleolus and lateral malleolus
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in what projection can you see the bi-malleolar fx?
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ap
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what is fractured in a tri-malleolar fx?
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medial malleolus, laterl malleolus, and the posterior tip of the tibia.
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in what projection can you see a tri-malleolar fx?
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mediolateral
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stress views for the ankle? why?
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inversion/eversion. to see the ligament damage and compare the two views.
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