Rad Positioning Ch 6 Review

Pt w/ history of osteoarthritis of both knees. Doc wants to evaluate damage to articular facets. Projection?

AP oblique foot with medial rotation demonstrates considerable superimposition of 3rd-5th metatarsals. Change?

AP mortise ankle reveals lateral malleolus is slightly superimposed over talus & lateral joint space isn't open. Cause?

Saclike structures found in knee joint that allow smooth articulation between ligaments and tendons

Which of the following imaging modalities and procedures will provide best assessment for osteomyelitis of foot?

What is the major disadvantage of using 45 degrees flexion for mediolateral knee?

The patella is drawn into intercondylar sulcus when knee is overextended

Aka osteitis deformans, bone disease disrupting new bone growth, resulting in overproduction of very dense yet soft bone

Rad appearance of highly malignant & destructive lesion that usually occurs in long bones and produces sunburst pattern

How much CR angle should be used for AP projection of toes (without elevation of forefoot)?

3-5 degree caudad CR angle should be used for AP knee for patients with ASIS-to-tabletop measurement of 20 cm

Decrease angle between anterior surface of foot and lower leg

Accumulated fluid in joint cavity

AP mortise ankle is commonly taken in surgery during open reductions

Inflammatory condition involving anterior, proximal tibia

Which tendon attaches directly to tibial tuberosity

Which projection of knee will best demonstrate neck of fibula without superimposition of tibia?

Another term for osteomalacia is rickets

Medial malleolus is part of what?

History of chondromalacia of patella. Concerned about loose bodies w/in patellofemoral joint space. Which projection?

Ankle joint is a ______ joint with a _______ type of movement

Malignant tumor of cartilage usually occurring in men older than 45 in pelvis and long bones

Which of the following patella requires pt be placed in prone, 50-60 degrees flexion of knee, & 45 degree cephalic angle

Extending ankle joint or pointing the foot and toes downward

Correct CR placement for AP knee is midpatella

Which position of foot will best demonstrate lateral (3rd) cuneiform?

Which of the following joints is a modified ellipsoidal or condyloid joint?

How much CR angle to the long axis of foot is required for plantodorsal (axial) of calcaneus?

Tear of tibial (medial) collateral ligament caused by trauma injury is frequently associated with tears of what?

Which of the following projections of the ankle will best demonstrate the open joint space of lateral aspect of ankle?

Radiographic hallmark of Reiter's syndrome seen in young men

Which metatarsal of the foot has a prominent tuberosity most frequently fractured?

Sprains and fractures involving bases of 1st and 2nd metatarsals

How much flexion of knee is recommended for lateral patella?

Patient enters Ed with possible transverse fracture patella. Which routine?

What CR angle is recommended for AP knee on patient with ASIS-to-tabletop measurement of 18 cm?

Follow-up images for fractured tib/fib may include only joint closest to site of injury

PA axial intercondylar fossa (Camp-Coventry method) doesn't demonstrate fossa (foreshortened.) Changes?

History of chondromalacia of patella. Cannot lie recumbent. Which would be best?

Disadvantage of superoinferior sitting, tangential (Hobbs modification) is that it requires acute flexion of knee

Correctly positioned lateral ankle will demonstrate lateral malleolus superimposed over posterior half of tibia

AP ankle reveals lateral joint space isn't open. Superior and medial joint are. Correction?

Distal tibiofibular joint is classified as a ______ joint

How much rotation from AP position of ankle will produce AP mortise projection?

What CR angle should be used for mediolateral knee on short, wide-pelvis patient?

The purpose of AP stress views of ankle is to demonstrate:

Adductor tubercle is located on posterior aspect of medial femoral condyle

Common primary bone malignancy in peds and young adults

Tangential sesamoid bones of foot should be performed with patient prone rather than supine to min magnification

Mediolateral knee overrotated toward IR can be recognized by which of the following?

Foot must be force dorsiflexed so that the long axis of foot is perpendicular to IR for AP and mortise ankle

Best method of evaluating injuries to menisci and ligaments of knee joint involves what?

For AP weight-bearing knee, CR should be:

Where is the CR placed for mediolateral projection of calcaneus?

Possible ligament tear to lateral aspect of ankle. Can't have MRI. Which techniques provide assessment of soft tissue?

Condition affecting sarcroiliac joints and lower limbs of young men, especially posteriosuperior margin of calcaneus

History of Lisfranc joint injury. Which would best demonstrate this condition?

Which joint surfaces of ankle joint are most commonly open with AP ankle?

Knee w/ interest in proximal tib/fib joint & lateral condyle of tib. Which should tech obtain?

Mediolateral patella reveals femorapatellar joint space isn't open. Patella is within intercondylar sulcus. Cause?

AP knee reveals rotation with almost total superimposition of fibular head and proximal tibia. Correction?

Superoinferior, sitting tangential patellofemoral joint space requires CR angle of 5-10 degrees posterior

Pt enters Ed w/ injury near base of 1st & 2nd metatarsals. Basic foot projections are inconclusive. Which projection?

Pt comes to radiology for eval of longitudinal arch of foot. Which projection would best provide info about the arch?

How much is the foot dorsiflexed with tangential projection for sesamoid bones if CR remains perpendicular to IR?

Which knee requires pt be placed supine w/ 40 degrees flexion of knee & CR angled 30 degrees from long axis of femur

How many articular facets make up subtalar joint?

Adductor tubercle is visible on medial, posterior aspect of femoral condyle & determine rotation of lateral knee

How many tarsal bones are found in the foot?

To ensure both joints are included on AP Tib/Fib on adult, the tech can do what?

Grids are required for studies of adult ankle

Inherited type of arthritis commonly affecting males; frequently begins at first metatarsophalangeal joint

What are the two arches of the foot?

How much knee flexion is required for weight-bearing PA axial projection (Rosenburg method) of knee?

Patellofemoral joint is _____ joint with _____ type of movement

What is one advantage of lateromedial projection of foot?

AP of second toe reveals IP joints aren't open. What is the cause?

Which structure or bone contains sustentaculum tali?

What is the recommended SID for superoinferior sitting tangential (Hobbs modification) method?

Another term for intercondylar sulcus is the what:

Calcaneus articulates with the talus and the what?

Correctly positioned AP 45 degree medial oblique ankle frequently may demonstrate fracture of base of 5th metatarsal

For AP weight-bearing feet, CR should be:

Benign, neoplastic bone lesion due to overproduction of bone at joint (usually knee)

What type of CR angle is required for PA axial weight-bearing bilateral knee (Rosenberg method)?

When multiple exposures are placed in single CR IR lead masking shouldn't be placed on unexposed regions

Infection involving sesamoid bones of foot. Which projection should be performed?

Another term for osteochondroma

Geriatric is unsteady & unsure. Which intercondylar fossa would provide best results w/out risk of injury to patient?

Which term describes the top or anterior surface of the foot?

Rad appearance of well-circumscribed lucency within bones

Profile of adductor tubercle and excessive superimposition of fibular head and neck on mediolateral knee indicate what?

What CR angle is required for Ap medial oblique foot?

Benign, neoplastic bone lesion filled with clear fluid

To properly visualize the joint spaces with AP foot, CR must be:

Which of the following routines should be performed for study of second toe?

Where would the IP joint be found in the foot?

Plantodorsal (axial) calcaneus reveals foreshortening. Which modifications should be used?

Which of the following knee projections requires use of a special IR holding device?

AP medial oblique foot, if positioned correctly, should demonstrate what?