Anatomy
Five segments fused into a single curved triangular bone in the adult.
The Sacrum
What will be demonstrated on an AP hip projection radiograph with the accurate positioning?
*Hint: Lesser or greater trochanter
Answer: The greater trochanter in profile.
Scoliosis is an?
Abnormal lateral curvature of the spine.
For an AP projection of the foot, the central ray is directed to the?
The base of the 3rd metatarsal.
What is the respiration phase for a lateral L-spine?
Orthostatic
What two bones make up the leg, and which one carries all the weight?
Tibia & fibula. Tibia carries all the weight.
An AP T-spine demonstrating obscured lower thoracic intervertebral disk space and distorted vertebral bodies was most likely caused of this?
Options:
Obtained with the patient's legs flexed.
Obtained with the patient's torso rotated.
Obtained with the patient's legs extended.*
Another name for Degenerative Joint Disease (DJD) is?
Osteoarthritis
When performing a plantodorsal axial projection of the os calcis, how much is the central ray angled?
Angled CR 40 degrees cephalad.
The Fuchs method is used to demonstrate?
The tip of the odontoid.
How many vertebrae are in the C-spine, T-spine, L-spine, Sacrum, and Coccyx?
7, 12, 5, 1 (5 fused together), & 1.
A PA axial oblique C-spine image demonstrates intervertebral disk space and distorted vertebral bodies. What is the positioning error?
*Hint: it has to do with the CR.
The CR angulation is inaccurate.
Results from a hyperflexion force that causes fracture through the vertebral body and posterior elements.
Chance Fracture.
Where is the CR directed for the mediolateral projection of the knee?
1" distal of the medial epicondyle.
On an AP ankle projection, what bone slightly overlaps with the distal fibula?
Talus
The innominate bone is made up of three sections that sections that comprise the hip bone. Which bone is the largest?
Ilium
An internally rotated AP oblique knee projection demonstrates the tibia partially superimposed over the fibular head. How should the positioning setup be fixed?
*Hint increase or decrease the degree of internal rotation.
Answer: Increase the degree of internal rotation.
Inflammation of the vertebrae.
Spondylitis.
Where is the CR directed for the AP bilateral frog-leg projection?
3" distal to the iliac crest.
Which of the projection is best suited for the patient with fractures of both hips in order to obtain a lateral view?
Taylor Method
Judet Methhod
Clements-Nakayama Method
Clements-Nakayama Method
What are the 7 tarsals that make up the foot?
Calcaneus, Talus, Navicular, Cuboid, & 3 Cuneiforms (Medial, Intermediate, Lateral)
A projection demonstrates the leg rotated 15 to 20 degrees, the foot dorsiflexed, and the intermalleolar plane parallel to the IR. Which projection is this?
AP Mortise projection.
A primary malignant neoplasm that spreads distant sites via blood and lymphatics.
Metastases
On an AP knee projection, what are the CR angels based on the hip-to-table measurements?
<19 cm = 3-5 degrees caudad
19 to 24 cm = perpendicular
>24 cm = 3-5 degrees cephalad.
The Holmblad projection of the knee demonstrates?
Intercondylar fossa