Positioning test 8

The distal tibial joint surface is called the
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Terms in this set (77)
Which of the followng conditions may produce the radiographic appearance of a destructive lesion with an irregular periosteal reaction?osteogenic sarcomaWhat is the common term for chondromalacia patellae?Runner's kneeWhich imaginary plane should be placed parallel to the IR for an AP projection of the knee?midsagittalWhich joint space should be open or almost open for a well- positioned AP oblique knee with medial rotation?proximal tibiofibularSituation- a projection is performed for the patellofemoral joint with the patient supine and the knee flexed at 40 degrees. The CR is angled 30 degrees caudal from horizontal. The cassette is resting on the lower legs supported by a special cassette-holding device. Which of the following methods has been described?bilateral MerchantWhat is the major disadvantage of the Settegast method?requires overflexion of kneeSituation- A radiograph of an AP knee shows that the joint spaces are not equally open and the proximal fibula is superimposed over the tibia. Which specific positioning error leads to this radiographic outcome?lateral rotation of the lower limbSituation- a radiograph of the Camp Coventry method was produced, but the intercondylar fossa is not open and is foreshortened. The following positioning factors were used: prone position, lower leg flexed 45 degrees, and CR angled 30 degrees caudal and centered to the popliteal crease. Which of the following should be done during the repeat exposure to produce a more diagnostic image?increase CR angle to 45 degrees caudalSituation- a bilateral patellofemoral joint space study is ordered. The patient is paraplegic and cannot stand. Which of the following projections is best suited for this patient?Hobbs modificationWhich of the lower leg bones is on the medial side?tibiaWhich of the lower leg bones is on the lateral side?fibulaWhich tibial condyle articulates with the head of the fibula?lateralWhat is the prominent process on the anterior surface of the tibia just below the condyles?tibial tuberosityWhat is the projection off of the head of the fibula named?apexThe distal end of the femur consists of 2 large condyles. Which of these is the largest in size?medial condyleAnteriorly, what separates the femoral condyles?patellar surfacePosteriorly, what separates the femoral condyles?intercondylar processT or F The femur is the largest bone in the body.TrueOn the posterior femur, what is the surface superior to the intercondylar surface named?popliteal surfaceWhat type of bone is the patella?sesamoidIs the apex of the patella directed inferior or superior?inferiorHow is the patella attached to the tibia?patellar ligamentWhat is the name of the cup-shaped socket that receives the head of the femur on the hip bone?acetabulumWhat is the prominent ridge between the trochanters on the posterior surface of the body named?intertrochanteric crestWhat are the two common sites of fractures in the elderly on the femur?femoral neck and intertrochanteric crestWhat is the weight bearing bone of the lower leg?tibiaA small triangular depression located on the tibia that helps form the distal tibiofibular joint is called?fibular notchThe articular facets of the proximal tibia are also referred to as what?tibial plateauThe most proximal aspect of the fibula is the _______________________________.apex or styloid processThe extreme distal end of the fibula forms the _______________________________ .lateral malleolusWhy must the central ray be angled 5 to 70 cephalad for a lateral knee position?medial condyle extends lower than lateral condyleWhat are the two palpable bony landmarks found on the distal femur?medial and lateral epicondylebetween the patella and distal femur ________________________patellofemoralbetween the two condyles of the femur and tibia __________________________femorotibialWhich AP oblique rotation of the knee best visualizes the lateral condyle of the tibia and the head and neck of the fibula?medial (internal)to include both joints for a lateral projection of the tibia and fibula for an adult, the technologist may place the IR _____ in relation to the part.diagonallyWhat is the recommended central ray angulation for an AP projection of the knee for a patient with thick thighs and buttocks (measuring greater than 24 cm)?3-5 cephaladWhere is the central ray centered for an AP projection of the knee?1/2 distal to apex of patellaWhich basic projection of a knee best demonstrates the proximal fibula free of superimposition?ap oblique, 45 degrees medial rotationHow much flexion is recommended for a lateral projection of the knee?20 to 30 degreesWhat is the recommended central ray placement for a lateral knee position on a tall, slender male patient with a narrow pelvis?5 degrees cephaladmedial malleolustibialateral epicondyledistal femurpatellar surfacedistal femurarticular facetstibiafibular notchtibiastyloid processfibulabasepatellaintercondyloid eminencetibianeckfibula(T or F) the distal tibial includes the fibular notchTruethe fibular does ________ bear weightnotWhat type of joint is the knee?synovial, hinge joint<19 cm =3-5 degrees caudad19 to 24 cm=perpendicular>24 cm3-5 degrees cephaladPA Axial (Holmblad Method) is a tunnel view (T or F)trueCamp- Coventry method is a tunnel view (T or F)trueBeclere method is a tunnel view (T or F)truewhat are the essential projections of the patellaPA, Lateral, Tangentialvarusmedial compartment narrowingValguslateral compartment is narrowedOseoarthritisalso called DJD. Narrowed irregular joints with rough surfaces and occasionally spursOsteochondroma (exostosis)benign bone lesion that is a consolidated overgrowth of bone. Tumor usually grows away from jointosteogenic srcomahighly malignant primary bone tumor. Sunburst. Occurs in childhood up to early 20sChondrosarcomamalignant tumor of cartilageOsgood-Schlatter diseaseinjury that occurs as a result of the patellar tendon detaching from the tibial tuberosity and pulling the bone