Term
| Which metatarsal bone of the foot has a prominent tuberosity frequently fractured? |
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Definition
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Term
| What are the two arches of the foot? |
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Definition
| The longitudinal and transverse |
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Term
| The patella is drawn into the intercondylar sulcus when the knee is overextended |
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Definition
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Term
| The medial malleolus is part of the: |
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Definition
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Term
| The ankle joint is a ___ joint with a ____ type of movement |
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Definition
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Term
| A tear of the tibial (medial) collateral ligament (MCL) due to a trauma injury is frequently associated with tears of the: |
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Definition
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Term
| Saclike structures found in the knee joint that allow smooth articulation between ligaments and tendons are called: |
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Definition
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Term
| A radiographic appearance of a highly malignant and extensive destructive lesion that usually occurs in long bones and produces a sunburst pattern describes: |
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Definition
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Term
| To reduce scatter radiation during tabletop procedures, the Bucky tray should not be positioned directly under the lower limb being radiographed |
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Definition
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Term
| A lateral knee radiograph that is overrotated toward the IR can be recognized by which of the following? |
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Definition
| The fibular head will appear less superimposed by the tibia than a true lateral |
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Term
| how much rotation from an AP of the ankle will typically produce an AP mortise projection? |
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Definition
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Term
| A radiograph of an AP projection of the second toe reveals that the interphalangeal joints are not open. What is the most likely cause for this radiographic outcome? |
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Definition
| Incorrect CR centering or angle |
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Term
| A radiograph of an AP medial oblique projection of the foot, if positioned correctly, should demonstrate: |
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Definition
| 3rd-5th metatarsals free of superimposition |
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Term
| The posterior visibility of the adductor tubercle on a lateral knee projection indicates: |
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Definition
| Underrotation of the knee |
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Term
| A radiograph of an AP knee reveals with almost total superimposition of te fibular head and the proximal tibia. What must the tech do to correct this positioning error on the repeat? |
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Definition
| Rotate the knee medially slightly |
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Term
| A patient comes to the radiology department for a knee study with special interest in the region of the proximal tibiofibular joint and the lateral condyle of the tibia. Which of the following positiing routines should the tech obtain? |
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Definition
| AP, lateral, medial oblique |
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Term
| A radiograph of an AP oblique foot with medial rotation demonstrates considerable superimposition of the 3rd-5th metatarsals. How must the original position be changed to eliminate this problem? |
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Definition
| Decrease obliquity of the foot |
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Term
| The radiographic hallmark of Reiter syndrome seen in young men is: |
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Definition
| erosion of the achilles tendon insertion |
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Term
| The foot is composed of 3 groups of bones which include the: |
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Definition
| phalanges, metatarsals, tarsals |
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Term
| The small unattached bones found in the foot that are often embedded in tendons are called: |
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Definition
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Term
| The most superior bone of the foot that articulates with the tibia and fibula at the ankle joint is called the: |
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Definition
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Term
| The largest and strongest bone of the foot that is located most posteriorly is called the: |
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Definition
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Term
| The opening in the middle of the subtalat joint is called the: |
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Definition
| Sinus tarsi or the tarsal sinus |
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Term
| The foot is formed with two arches that run the length of the foot and across from medial to lateral. These are called: |
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Definition
| longitudinal and transverse |
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Term
| The opening of the ankle joint formed by the talus, tibia, and the fibula often is referred to as the _____ b/c of its shape where the superior portion of the talus fits into the socket formed by the tibia nd fibula. |
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Definition
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Term
| The ankel joint is capable of flexion and extension movement and is correctly identified as which type of joint? |
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Definition
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Term
| The process at the end of the fibula that forms the lateral most portion of the ankle is the: |
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Definition
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Term
| The most superior portion of the fibula which is somewhat pointed is shape is the: |
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Definition
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Term
| The long, deep groove between the two femorail condyles is called the: |
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Definition
| intercondyloid fossa or tunnel |
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Term
| The posterior surface or region of the femur at the knee just above the intercondyloid fossa where numerous blood vessels and nerves pass is called the: |
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Definition
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Term
| The patella's most inferior aspect is more pointed and is referred to as the: |
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Definition
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Term
| The major ligaments of the knee which prevents adductionand abduction and help to stabilize the knee joint are called the: |
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Definition
| lateral collateral and medial collateral |
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Term
| The structures in the knee that are sac-like structures that cushion the knee joint with synovial fluid are the: |
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Definition
| suprapatellar and the infrapetellar bursa |
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Term
| The CR for the mediolateral projection of the calcaneous is directed to a point: |
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Definition
| 1 in distal to the medail malleolus |
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Term
| When performing the PA axial projection, sometimes referred to as the tunnel view, the lower leg is flexed at a 40 degree angle at the knee and the central ray is directed at an angle of 40 degrees caudal and perpendicular to the tibia. This projection is performed to better demonstrate the: |
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Definition
| intercondyloid fossa, tibial plateau and eminences |
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Term
| The correct amount of oblique for the AP oblique projection of the foot (medial rotation) is _____ degrees internally |
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Definition
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Term
| To demonstrate the ankle in the AP oblique projection, the entire lower extremity is rotated: |
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Definition
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Term
| To correctly position the AP projection of the knee, the CR should be directed to the: |
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Definition
| 1/2 distal to the apex of the patella |
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Term
| To compensate for thinner orlarger patient, when performing the AP projection of the knee, the CR can be correctly: |
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Definition
| angled 3-5 degrees for the thinner patient and 3-5 cephalic for the larger patient |
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Term
| In performing the mediolateral projection or lateral position of the knee, it becomes necessary to angle the CR 5-7 degrees cephalad to demonstrate the knee joint free from superimposition. This is necessary because: |
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Definition
| The medial condyle of the femur is lower or more inferior than the lateral condyle |
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Term
| What is the central ray placement for an AP projection of the toes? |
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Definition
| Center to the MTP joint in question and angle tube 10-15 degrees |
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Term
| What is the central ray placement for an AP oblique projection of the toes? |
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Definition
| Directed to MTP joint in question |
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Term
| What is the central ray placement for a lateral projection of the toes? |
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Definition
1st digit - directed to the IP joint
2nd-5th digits- directed to the PIP joint |
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Term
| What is the central ray placement for an AP porjection of the foot? |
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Definition
| CR directed to the base of the 3rd metatarsal, angled 10 degrees towards the calcaneous |
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Term
| What is the central ray placement for an AP oblique projection of the foot? |
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Definition
| Directed to the base of the 3rd metatarsal |
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Term
| What is the central ray placement for a Lateral projection of the foot? |
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Definition
| directed to the medial cuneiform (at level of the base of the 3rd metatarsal |
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Term
| What is the central ray placement for a plantodorsal (Axial) projection of the calcaneous? |
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Definition
| CR angled 40 degrees cephalad, directed to the base of the 3rd metatarsal |
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Term
| What is the central ray placement for a lateral projection of the calcaneous? |
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Definition
| Directed to a point 1 in inferior to the medial malleolus |
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Term
| What is the central ray placement for a projection of the AP, mortise, and oblique ankle? |
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Definition
| Directed to a point midway between malleoli |
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Term
| What is the central ray placement for a lateral projection of the ankle? |
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Definition
| Directed to the medial malleolus |
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Term
| What is the central ray placement for an AP and lateral projection of the tibia-fibula? |
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Definition
| CR directed to the mid point of the leg |
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Term
| What is the central ray placement for an AP projection of the knee? |
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Definition
| directed to a point 1/2 in distal to the apex of the patella |
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Term
| What are the degrees of angulation for an AP projection of the knee? |
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Definition
Thin thighs and buttocks- 3-5 caudad
average - 0 angle
thick thighs and buttocks 3-5 cephalad |
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Term
| What is the central ray placement for a medial or lateral oblique projection of the knee? |
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Definition
| 0 degree angle on the average size patient, directed 1/2 in distal to the apex of the patella |
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Term
| What is the central ray placement for a lateral projection of the knee? |
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Definition
| Angle 5-7 degrees cephalad, direct CR 1 in distal to medial epicondyle |
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Term
| What is the central ray placement for a tangential (axial/sunrise/skyline) projection of the knee? |
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Definition
| align CR 15-20 from long axis of lower leg, direct CR to midfemoropatellar joint |
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Term
| What will appear in profile medially on an Axial projection of the calcaneous? |
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Definition
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Term
| Patient position for AP ankle |
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Definition
| natural position, intermalleolar line will not be parallel to IR; the lateral malleolus will be about 15 degrees posterior |
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Term
| The medial mortise joint will be open and the lateral mortise joint will be closed in an AP projection of the ankle |
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Definition
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Term
| The lateral and medial mortise joints are open on a AP mortise joint view of the ankle. |
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Definition
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Term
| What is the position of the fibula in a lateral projection of the ankle? |
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Definition
| The fibula is superimposed by the posterior half of the tibia |
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Term
| What is well demonstrated on an AP medial oblique projection of the knee? |
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Definition
| The lateral condyles of the femur and tibia, and the head and neck of the fibula |
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Term
| What is well visualized on an AP lateral oblique projection of the knee? |
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Definition
| Medial condyles of the femur and tibia, fibula superimposed by the tibia |
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