Pelvis and Upper Femora Flashcards
Which structure of the pelvis articulates with the femur?
Acetabulum
Which bones of the pelvis compose the acetabulum?
Pubis, ischium, and ilium
On which bone is the ala located/
Ilium
which pelvis structures is not used as a positioning palpation point?
Ischial spine
which portions of the hip bone join to form the obturator foramen?
Pubis and ischium only
what is the name of the border that extends on the hip bone from the posterior superior iliac spine to the ASiS/
iliac crest
what is the name of the process that separates the greater sciatic notch from the lesser sciatic notch on the hip bone?
ischial spine
which parts of the hip bones support the weight of the body when a person is in the sitting position?
ischial tuberosities
where in the pelvis is the body of the pubis located?
It forms part of the acetabulum
where should the IR be centered for the AP projection of the pelvis?
Midway between the ASIS and the pubic symphysis
where on the midline of the patient should the central ray enter for the AP projection of the pelvis?
2 inches (5cm) above the pubic symphysis
which positioning maneuver should be performed to place the femoral necks parallel with the IR for an AP projection of the pelvis?
Rotate the lower limbs medially 15 to 20 degrees
how should the central ray be directed for the AP oblique projection (modified Cleaves method) to demonstrate bilateral hips?
Perpendicularly
for which projection of the lower limbs or pelvis should the hips be flexed and the femurs be abducted from the midline of the patient?
AP oblique projection (modified Ceaves method) for femoral necks
where on the midline of the patient should the central ray be directed for the AP oblique projection (modified Cleaves method)?
1 inch (2.5 cm) above the pubic symphysis
Which projection can NOT be used to image a patient with a suspected intertrochanteric fracture?
Lateral projection (Lauenstein method) of the hip
for the AP oblique projection (modified Cleaves method), what is the purpose of abducting the femurs the required number of degrees/
To position the femoral necks parrallel with the IR
which structure should be centered to the midline of the table when the AP oblique projection (modified Cleaves method) is adapted to demonstrate only one hip?
ASIS
For which projection of an individual hop should the unaffected hip be flexed and the thigh be raised out of the way of the central ray?
Axiolateral projection (Danelius-Miller method)
For which projection of the hip should the central ray be directed horizontally into the medial aspect of the affected thigh?
Axiolateral projection (Danelius-Miller method)
Which of the following will best demostrate suspected fractures of the acetabulum?
AP oblique projection (Judet method)
Which positions would be used to demonstrate the posterior rim of the left acetabulum?
45 degree RPO
What specific portion of the acetabulum is demstrated by the AP oblique projection, external oblique position (Judet method)?
anterior rim
Which of the following would best demonstrate the pubic and ischial rami without foreshortening?
AP axial “outlet” projection (Taylor method)
What is the proper central ray orientation for the AP axial projection (Taylor method) for female patients?
30 to 45 degrees cephalad
