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RADT 316

Positioning- unit 2

QuestionAnswer
what is partially visible on a pelvis radiograph when the legs are in anatomic position lesser trochanters
when taking a pelvis radiograph and you need to see the lesser trochanters internally what lower limb rotation would you use external rotation
what lower leg rotation during a pelvis radiograph would the lesser trochanter not be seen medial rotation
which gender has a pelvis that is narrower, deeper, and less flared than the other male
which gender has a pelvis that is wider, more shallow, and more flared than the other female
which gender has a pubic arch that has an acute angle male
which gender has a pubic arch that has an obtuse angle female
which gender has an inlet shape that is more oval or heart shaped male
which gender has an inlet shape that is more round and larger female
what is the joint between the sacrum and each ilium si joints
what is the structure between the right and left pubic bones symphasis pubis
what is the temporary growth joint of each acetabulum that solidifies in mid-teen years union on acetabulum
what is the joints between head of femur and acetabulum of pelvis hip joints
what type of joint is the si joint synovial
what type of joint is the sym pubis cartilaginous
what type of joint is the union of acetabulum cartilaginous
what type of joint is the hip joint synovial
ankylosing spondykitis first effect demonstrated is the fusion of si joints, cases extensive calcification of the ant. long. lig. of the spinal column; aka bamboo spine
avulsion fx of the pelvis cause extreme pain and are difficult to dx if not properly imaged, occurs in adolescent athletes who experience sudden forceful, or unbalanced contraction of the tendentious and muscular attachments; lower kV when imaging, running hurdles can be a cause
chondrosarcoma malignant tumor of the cartilage; occurs in the pelvis and long bones in men over age 45
developmental dysplasia of the hip hip dislocations that are caused by a condition that is present at birth and may require frequent hip readiographs
legg-calve-perthes disease most common type of aseptic or ischemic necrosis, lesion typically involves only one hip; primarily in boys ages 5-10
metastatic carcinoma malignancy that spreads in the bone via the circulatory or lymphatic system, or by direct invasion
osteoarthritis aka DJD, degeneration of joint cartilage and adjacent bone causing pain ans stiffness
pelvic ring fx caused by severe blow or trauma to one side of the pelvis, may result in a fracture site away from the site of primary trauma
proximal femur fx most common in older adult or geriatric patients with osteoporosis or avascular necrosis
slipped capital femoral epiphysis occurs in 10 to 16 years olds during rapid growth when even minor trauma can precipitate its development
what is the technique for an AP Pelvis mAs: 12 kV: 75-85
what is the technique for an AP Pelvis "Frog-Leg" mAs: 12 kV: 75-85
what is the technique for an AP Axial "Outlet" - Taylor Method mAs: 10 kV: 75-85
what is the technique for an AP Axial "Inlet" Projection: Pelvis mAs: 12 kV: 75-85
what is the technique for an Posterior Oblique Pevlis -- Acetabulum (RPO)-- Judet Method mAs: 10 kV: 75-85
what is the technique for an Posterior Oblique Pevlis -- Acetabulum (LPO) -- Judet Method mAs: 10 kV: 75-85
what is the technique for an AP hip mAs: 12 kV: 75-85
what is the technique for an Axiolateral inferosuperior (trauma) hip mAs: 40 kV: 75-85
what is the technique for a Unilateral "Frog-Leg" projection - Mediolateral Hip mAs: 12 kV: 75-85
what is the technique for an AP Axial Projection Sacroiliac Jts mAs: 9 kV: 85
what is the technique for a Posterior Oblique (RPO) Sacroiliac Jt mAs: 12 kV: 80
what is the technique for a Posterior Oblique (LPO) Sacroiliac Jt mAs: 12 kV: 80
what is the technique for an AP Femur Mid & Distal mAs: 12 kV: 70 - 80
what is the technique fo/r an AP Femur (Hip) -- Proximal mAs: 12 kV: 75-85
what is the technique for a Lateral -- Mediolateral or lateromedial Femur -- Mid & Distal mAs: 7 kV: 70 - 80
what is the technique for a Lateral -- Mediolateral Femur -- Mid & Proximal mAs: 12 kV: 70 - 80
where is the location of the central ray for an AP Pelvis CR directed midway between level of ASISs and symphysis pubis Approx. 2 inches inferior to level of ASIS
where is the location of the central ray for an AP Pelvis "Frog-Leg" directed CR to a point 3 inches below level of ASIS
where is the location of the central ray for an AP Axial "Outlet" - Taylor Method direct CR to a midpoint 1 to 2 inches distal to the superior borderof the symphysis pubis or greater trochanters
where is the location of the central ray for an AP Axial "Inlet" Projection: Pelvis direct CR to a midpoint at level to the ASIS
where is the location of the central ray for an Posterior Oblique Pevlis-- Pain in the anterior rim-- Acetabulum (RPO)-- Judet Method 2 inches distal and 2 inches medial to the downside ASIS
where is the location of the central ray for an Posterior Oblique Pevlis -- Pain in the posterior rim -- Acetabulum (LPO) -- Judet Method 2 inches distal to the upside ASIS
where is the location of the central ray for an AP hip CR directed to 1 or 2 inches distal to midfemoral femoral neck
where is the location of the central ray for an Axiolateral inferosuperior (trauma) hip directed CR to femoral neck & to the IR Rotate affected leg 15 to 20 degrees unless contraindicated
where is the location of the central ray for a Unilateral "Frog-Leg" projection - Mediolateral Hip directed to midfemoral neck
where is the location of the central ray for an AP Axial Projection Sacroiliac Jts direct CR to a midline point about 2 inches below the level of the ASIS
where is the location of the central ray for a Posterior Oblique (RPO) Sacroiliac Jt direct the CR to 1 inch medial to the upside ASIS
where is the location of the central ray for a Posterior Oblique (LPO) Sacroiliac Jt direct the CR to 1 inch medial to the upside ASIS
where is the location of the central ray for an AP Femur Mid & Distal CR directed midpoint of IR
where is the location of the central ray for an AP Femur (Hip) -- Proximal place IR top edge level with ASIS. CR directed to midpoint of IR
where is the location of the central ray for a Lateral -- Mediolateral or lateromedial Femur -- Mid & Distal direct CR to femur and IR directed to midpoint of IR
where is the location of the central ray for a Lateral -- Mediolateral Femur -- Mid & Proximal CR perpendicular to femur and directed to midpoint of IR
what is the angle of teh CR for females for an AP Axial "Outlet" - Taylor Method 30 to 45 Degrees Cephalad
what is the angle of teh CR for males for an AP Axial "Outlet" - Taylor Method 20 to 35 Degrees Cephalad
what is the angle of the CR for an AP Axial "Inlet" - Taylor Method 40 degrees caudad
what is the angle of the CR for an AP Axial Projection Sacroiliac Jts 30 to 35 degrees cephala
bones that make up the pelvic 2 hip bones, sacrum, coccyx
bones that make up pelvic girdle 2 hip bones
3 divisions of hip bones ilium, ischium, pubis
when and where do there bones fuse into one fuse into one bone in midteens, occurs in acetabulum
list what makes up the ilium body, ala or wing, and crest
list 2 important positioning landmarks ASIS and iliac crest
false pelvis general area above or superior to the oblique plane through the pelvic brim
true pelvis are inferior to the plane thru the pelvic brim, cavity is completely surrounded by boney structures
state 2 angles of the proximal femur average adult: 125 degrees 15-20 degree ant angle of the neck and head of the femur
explain why the femoral should be inverted (internally rotated) for hip or pelvis radiography puts the proximal femur and hip joint into a true AP projection
alternative landmark for location of the pubic level other than the pubis itself ASIS and iliac crest
describe the correct degree of abduction of the femora in the axiolateral projection unilateral modified (Cleaves method) 40-45 degrees
name the position and projection of the CR which visualizes the si joints bilaterally with one exposure AP axial si joints
point out the differences in central ray angulation for the AP axial projection (taylor method) when the patient is male or female 20-35 degrees for males, 30-45 degrees for females
state the correct relationship between the central ray, femoral neck, and film in the axiolateral projection (Danelius-Miller projection) CR perpendicular to femoral neck and IR
describe two methods for obtaining lateral projections of the hip when the patient cannot be moved from the supine position Danelius-Miller method: elevate pelvis about 1-2 inches; Clements-Nakayama Method: Angle cassette 15 degrees from vertical, and centered to femoral neck, and angle 15-20 degrees from horizontal
list 4 essential parts of the proximal femur head, neck, greater trochanter, and lesser trochanter
Created by: meechthebeech91