Ch 7 Hips and Pelvis Exam review Flashcards
Exam review:
What are palpable landmarks on a pelvis?
1. Greater Trochanter
2. Pubis symphysis
3. Femoral Neck
4. Iliac Crest
1,2,4
Femoral neck is not one of them
Exam review:
What is the angulation between the neck and medial shaft of the femur in the average adult?
125 degrees
Exam review:
what should be parallel to the image receptor when performing an inferosuperior axial hip? (cross table)
A. Knee joint
B. Central Ray
C. Tube Face
D. Femoral epicondyles
C. Tube Face
Exam review:
Central ray is always ________
Perpendicular
Exam review:
(t/f)
In an AP axial projection (frog) the femoral neck is parallel to the image receptor
How many degrees?
Vertically or horizontally?
True
30-40 degrees
Vertically
(Book says 40-45)
Exam review:
How much do you oblique for Judet views?
45 degrees?
LPO/ RPO
Exam review:
What do you see on the upside of the Judet views?
posterior rim of the acetabulum
anterior iliopubic column
Exam review:
Is the Acetabulum in the Ilium, pubis, or ischium?
all three
The joint is separated into anterior, posterior, and superior portions.
Exam review:
What do you see on the downside Judet view?
anterior rim of the acetabulum
posterior ilioschial column
Exam review:
How do we position for an downside Judet view?
patient supine
45 degree oblique LPO/RPO
2 inches inferior + 2 inches medial to downside ASIS
Exam review:
What makes up the pelvis?
2 hips (left and right)
Sacrum
Coccyx
Exam review:
How do we position for an upside Judet view?
patient supine
45 degree oblique LPO/RPO
2 inches inferior to ASIS
Exam review:
What do we see in an upside Judet view?
posterior rim of the acetabulum
anterior iliopubic column
Exam review:
what is the superior portion of the hip?
Ilium
Exam review:
What is the posterior portion of the hip?
Ischium
(itchy bum)
Exam review:
What is the anterior portion of the hip?
Pubis
Exam review:
What is the main difference between a female pelvis and a male pelvis?
Male is <90 (less than 90 degrees, shaped more like a heart)
Female is >90 (mainly due to birthing reasons)
Male is acute angle
Female is obtuse angle
Exam review: What view/rotation best shows the lesser trochanters in profile?
external oblique/rotation
Exam review:
what position best displays an anterior/posterior fracture?
Lateral projection
Exam review:
What view best shows the greater trochanter in profile?
internal oblique/rotation
Exam review:
What view best shows a lateral fracture?
an anterior/posterior (AP) projection
Exam review:
Axial lateral horizontal beam projection of the hips (cross table) requires the image receptor to be placed:
1. parallel to the central ray
2. parallel to the long axis of the femoral neck
3. in contact with the lateral surface of the body
2 bc internal rotation makes the femoral neck parallel
3 bc we have patients lateral side closer to IR to reduce OID
cannot be no. 1 because the central ray is ALWAYS perpendicular to the image receptor
Exam review:
In a frog position the femoral neck is _____ to the image receptor
parallel
Exam review:
what part of the innominate bone makes up the obturator foramen?
Ischium
Pubis
(where the posterior and anterior meet to create the hole aka obturator foramen)
Exam review:
where is the innominate bone located at?
also known as?
at the hips (left or right there are two)
ossa coxae
Exam review:
Where is the adductor tubercle located?
distal medial femur
(Near medial epicondyle)
Exam review:
right posterior oblique Judet position of the right acetabulum will demonstrate the:
1. anterior rim of right acetabulum
2. right iliac wing
3. right anterior iliopubic column
(will change the answer choices)
(1+2) but…
anterior rim of acetabulum
Posterior Ilioischial column
right iliac wing
Exam review:
How many degrees are the medial and lateral condyles of the femur are separated from each other?
5-7 degrees
(why we angle on knees)
(Medial extends more Distally than lateral)
Exam review:
What does the femur articulate with distally?
Patella
tibia
Exam review:
When would we not rotate the femur for hip views?
if there is a suspected fx
or
we want to see specific trochanters
Exam review:
The femoral neck can be located:
A. Parallel to the femoral shaft
B. Perpendicular to the femoral shaft
C. Perpendicular to the line drawn from the ASIS to the pubis symphysis
D. Perpendicular to the line drawn from the iliac crest to the pubis symphysis
(will change these answer choices)
could be either C or D
Exam review:
How much does the femur slant in?
5-15 degrees?
Exam review:
What does the femur articulate with proximally?
acetabulum?
Exam review:
When would we rotate the femur for hip projections?
all hip projections to remove lesser trochanter from profile
Internal= greater trochanter
External= lesser trochanter
Exam review:
When would we use the Nakayama method?
What does it replace?
Trauma views
it replaces our crosstable
Exam review:
What can we use for a cross table lateral projection to improve the quality of the image?
add filter & grid
Exam review:
What is the central ray for the AP pelvis?
2 inches inferior to ASIS
midway point between ASIS and Pubis symphysis
(15–20-degree internal rotation of affected leg)
Exam review:
What is osteoporosis?
How does it appear on an x-ray?
What demographic is it most common in?
reduction in bone
more radiolucent (whiter)
common in geriatric patients
Exam review:
What is the CR for inlet?
40 degrees caudad
CR ASIS