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Ankle and Calcaneus
Anatomy and Positioning
| Question | Answer |
|---|---|
| What is the degree of the CR of an Axial Calcaneus? | 40 cephalic |
| Where does the CR enter for an Axial Calcaneus? | Plantodorsal at base of third metatarsal |
| How is the pt positioned for a Lateral Calcaneus? | On affected side with leg almost lateral |
| Where is the CR for a Lat Calcaneus? | Perp to calcaneus, 1" below medial malleolus |
| What is shown on a Lat Calcaneus? | Total calcaneus in profile, sinus tarsi |
| What are the 3 parts of the ankle joint? | lateral malleolus of fib inferior surface of tibia medial malleolus of tibia |
| Why is the ankle able to adduct/abduct? | Due to the gliding of the intertarsals |
| In a true lateral ankle, what structures are superimposed? | the distal fibula is over posterior half of tibia |
| What is seen superimposed in the AP ankle? | anterior tubercle of tibia slightly over the fibula |
| How is the patient positioned for a Lateral Ankle? | On affected side with foot dorsiflexed |
| Which lateral ankle is more difficult for the pt? | Lateromedial is harder for pt and has increased OID for tibiotalar joint |
| What is structure is best demonstrated in an AP Oblique Ankle? | The lateral malleolus |
| What is the angle of CR for AP Mortise Joint? | 15-20 |