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Lower Limb 2 (115)
Procedures we didnt cover in checkoff
| Question | Answer |
|---|---|
| Why are AP axial toe X-Rays reccomended? | Open the joint spaces & reduce foreshortening |
| Where should the CR enter for a toe X-Ray? | The MTP of the toe in question |
| The CR should be angled __________ When performing an AP Axial Toe X-Ray | 15° posterior |
| AP Axial Toe – Image Criteria | Open interphalangeal and metatarsophalangeal joint spaces |
| AP Axial Toe – Image Criteria | • No superimposition of other toes • No rotation: midshaft concavity equal on both sides |
| AP Axial Toe – Image Criteria | Includes entire toe, including distal half of the metatarsal, surrounding skin border, and marker |
| AP Oblique and Lateral Toe: Patient Positioning | • Oblique the foot 30-45° • Rotate Medially for toes 1 & 2, laterally for 4 & 5, your choice for 3 |
| AP Oblique and Lateral Toe: Central Ray Placement | Oblique = Perpendicular, enters MTP of toe in question for all Lateral = Perpendicular, PIP for 2-5, IP for 1st |
| Oblique and Lateral Toe – Image Criteria | Open interphalangeal and metatarsophalangeal joint spaces. No superimposition of other toes |
| Oblique Toe – Image Criteria | Twice as much soft tissue width and more concavity on the elevated surface of the phalanx |
| Lateral Toe – Image Criteria | Toenail in profile, if visualized and concave plantar surface of the phalanges very concave, dorsal surface almost straight |
| Tangential Sesamoids; Lewis Method | Prone Position Elevate affected ankle Dorsiflex toes |
| Tangential Sesamoids; Holly Method | Seated Position Place heel on IR Pull back great toe (Hallux) |
| Tangential Sesamoids Central Ray Placement | Perpendicular, through 1st MTP joint |
| When performing a __________ X-Ray, the CR enters base of the 3rd metatarsal, Collimate to anatomy, including about 1 inch superior to the ankle joint. | Lateral Foot |
| Which X-Ray shows the condition of the longitudinal arches under the full weight of the body? | Weightbearing Feet |
| Weightbearing Feet is best viewed? | Lateral |
| AP Axial Weightbearing Feet CR Placement | 40 or 48 inch SID CR placed at the base of metatarsals between feet Angle tube 10 or 15 degrees posterior |
| Lateral Weightbearing Feet CR Placement | Perpendicular to base of third metatarsal (or point just above) |
| What X-Ray is obtained after an inversion/eversion injury to verify the presence of a ligamentous tear? | Ankle: AP Stress |
| Ankle: AP Stress: Patient Position | Place ankle on IR in True AP position, then turn the plantar surface medially, then laterally |
| What X-Ray would we use to identify ankle joint space narrowing? | Ankle – Weight Bearing |
| What Axial Calcaneus Position did we use in checkoff? | Plantodorsal |
| Axial Calcaneus Dorsoplantar Central Ray placement | 42-48 inch SID, tube angled 40° caudal, CR enters posterior surface of ankle joint |
| Axial Calcaneus Dorsoplantar; Patient Position | • Patient prone with leg fully extended. • IR vertical, heel flat against IR, toes pointing down • Dorsiflex the ankle 90° • Have patient hold the ankle in right angle dorsiflexion with gauze, tape, etc. |
| How to view an inversion/eversion injury? | By alteration/widening of the joint on the side of the injury. |
| What X-Ray Visualizes medial side of foot ONLY IF not seen on AP Axial? | Lateral Oblique Foot |
Created by:
user-2016295