Comprehensive Femur, Hip Joint, and Pelvis Review Flashcards
What method name will demonstrate a lateral hip joint while utilizing a horizontal CR?
Danelius -Miller Method
What method name will demonstrate congenital hip dislocation in infants?
Andrew and Von Rosen (SP?)
What method name is used to demonstrate a lateral hip joint with the patient in a “frogleg” position?
Modified Cleaves
What degree of foot/leg rotation and in what direction should be utilized when properly positioning for the femur and/or hip?
15-20 degrees invereted
In reference to question #4(What degree of foot/leg rotation and in what direction should be utilized when properly positioning for the femur and/or hip?), why should this be done?
To pull the greater trochanter in profile and to make the femoral neck parallel to the IR
The head of the femur fits into the –1– to form a –2– joint.
- acetabulum
2. ball and socket
When performing a cross table lateral hip, the top of the IR should be placed at the –1– and should be –2– to the femoral neck.
- Illiac Crest
2. Parallel
When performing the infant hip series for congenital hip dislocation, the total degree of abduction should be –1– degrees.
90 degrees
List the proper ages for the routines below.
- -1– pediatric
- -2– infant hips (Andren Von Rosen)
- 4 mths -17 years old
2. 1 day- 4 mths
When is a “frog leg” lateral contraindicated?
suspected fracture
When performing a routine AP pelvis, the proper centering should be –1–.
2 inches inferior to ASIS and 2 inches superior to pubic symphysis
For the lateral distal femur, the –1– should be superimposed.
condyles
The proper SID for an upright pelvis should be –1–.
72 inches
For the AP proximal femur (AP hip), the top of the IR should be placed –1–.
at ASIS
The portion of the pelvis that we sit on is the –1–.
Ischial Tuberosity
In order to best demonstrate the lesser trochanters the feet should be –1–.
everted
When performing a lateral pelvis exam, the CR will be directed approximately 2 inches above the greater trochanter and along the –1–.
MCP
When performing a unilateral modified Cleaves Method for a proximal hip, if the patient is unable to adequately “drop” their leg out, they may –1–.
roll toward the affected side
This device is used to measure the proper degree of abduction when examining a patient for congenital hip dislocation.
protractor
The upright pelvis study is used to best demonstrate –1–.
acetabular joint space narrowing
The Lauenstein Method for lateral projections of the hip will utilize a CR that is –1–.
perpendicular to femoral neck
The Hickey Method for lateral projections of the hip will utilize a CR that is –1–.
20-25 degrees cephalic
When performing an upright leg length study on a long cassette, what anatomy should be demonstrated?
The hip joint to the ankle joint
In reference to #23 (When performing an upright leg length study on a long cassette, what anatomy should be demonstrated?), what are 2 instructions that must be given to the patient prior to the exposure?
- Remove shoes
2. Stand with equal weight on both feet
When performing a unilateral “frogleg” Modified Cleaves Method, the CR should be directed to the –1–.
femoral neck
When performing a pelvis exam, list 2 anatomic structures that should be demonstrated to show proper patient positioning has occurred.
- Greater Trochanter are pulled into profile
2. The femoral necks should be parallel to IR, not superimposed on itself
The –1– Method could be performed if a patient has bilateral hip injuries that prevent either a “frog” lateral or cross-table lateral/Danelius Miller Method (but, pt. can’t elevate unaffected leg).
Clements-Nakayamma Method
When performing either a Lauenstein or Hickey Method the femur should be placed –1– to the IR/ table.
parallel
The CR should be –1– to the femoral neck for the cross table lateral hip exam.
perpendicular
The IR should be –1– to the femoral neck for the cross table lateral hip exam.
parallel
List 2 things that could be done when performing the cross table lateral hip exam that could greatly improve the image quality of the radiograph.
- Use a grid
2. Use a compensating filter
What is the degree of leg abduction/flexion for the Modified Cleaves Method?
35 degrees (25-45 degrees)
What should be done to the unaffected leg when performing a lateral distal femur?
It should be draped over the affected leg. Not superimposed.
How many degrees should the knee be flexed when performing a lateral distal femur?
45 degrees
What are the 3 structures that form the acetabulum along with the fractional division and location of each?
Ilium 2/5 Superior
Ischium 2/5 Posterior
Pubis 1/5 Anterior
The flat “wing-like” portion of the ilium is called the –1–.
ala
What joint classification (by movement) is the pubis symphysis?
amphiarthrotic
What anatomy must be included on a pelvis radiograph?
The illiac crest to the ischial tuberosities. The complete hip joint including the greater trochanter. The proximal third of the femur with the lesser trochanter.
Name the 3 ways to localize the hip joint:
- Bisect the crease of the leg and the hip
- Go 2 inches medially from greater trochanter
- Bisect pubic symphysis and ASIS and then go down 2 inches at a right angle
Why will the femoral condyles NOT be completely superimposed when performing the lateral femur?
The medial condyle hangs lower than the lateral one.
How much should the knee be flexed for a lateral patella?
5-10 degrees
Name the 2 reasons we do a chest in the upright position if possible?
- Puts the diaphragm in its lowest natural position
2. Prevent engorgement of pulmonary vessels
Which lateral/axiolateral hip Method will demonstrate the neck without superimposition, the Lausenstein or the Hickey?
Hickey
