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foot/ankle/tibfib
| Question | Answer |
|---|---|
| what factors are we concerned with for image critique | image quality, anatomy, rotation, exposure. |
| On a lateral ankle xray, the malleoli should be ____. | superimposed. if not superimposed, it could be an AP |
| trabecular markings | bone markings sometimes seen on xrays. made by patterns of trabeculae |
| what is the projection for sesamoid bones? what is the scan called | tangential. holly or lewis |
| what does a compensating filter do? Does it reduce exposure? | it makes a more uniform exposure. does NOT affect pt dose. |
| In AP ankle, the foot is placed in | dorsiflexion, 90 degrees perpendicular to IR |
| inversion and eversion is done with | weight bearing stress views |
| AP axial calcaneus, foot is placed in | dorsiflexion |
| If doc wants to see arch issues, | we would do weight bearing studies |
| Mortise joint should be ____ for AP mortise view. What degree is foot | completely open. 15/ when malleoli are parallel to IR |
| if an AP oblique foot xray is positioned correctly, | metatarsals 3-5 will not be superimposed |
| what position is use to see the cuboid tarsal | the cuboid lies laterally. We do AP oblique to view it. |
| CR positioned where for lateral ankle | medial malleolus |
| degree of cr angle for AP axial calcaneus | 40 |
| what bones make up the mortise joint | tibia, fibula, talus |
| another name for the intercondylar eminence | tibial plateau |
| degree of angle for AP foot | 10 |
| what is the purpose of the mortise | to show the lateral portion of the ankle. |
| what kvp for toe views | 60-65 |
| when malleoli are truly parallel to the IR what view is it | mortise |
| what parts of the leg bear weight vs do not | bear weight- tibia, foot. not- fibula |
| what is the projection for calcaneus | plantodorsal |
| To see the Tarsometatarsal joints, we do what projection | AP axial 10 cephalad angle |
| what rotation is done for oblique foot | 30 degree medical rotation |
| true lateral tibfib will show | patella perpendicular to IR, superimposed femoral epicondyles, |
| os calci | another term for calcaneus |
| 2 arches of the foot | transverse and longitudinal |
| to see a 5th meta tarsal fracture (jones) we would do a | AP oblique |
| 3 projections we do for toes | ap axial, ap oblique, and lateral |
| sinus tarsi | the tear drop space we see in foot laterals |
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