Radiograph interpretation - Uni day 01/03 Flashcards
1
Q
What is diaphysis?
A
- Forms longest part of bone
- Known as the shaft
2
Q
What is metaphysis?
A
- Wide portion of bones either side of the diaphysis
- Where bone growth occurs
3
Q
What is the epiphysis?
A
- Rounded ends of long bones
- Contributes to the joint
4
Q
What is the physis?
A
- Ossifies once skeleton matures
- Known as growth plate
5
Q
What is apophysis?
A
- Site of tendon attachment
- Eventually ossifies
6
Q
What is sesamoid?
A
- Bone which ossifies within a tendon
- eg patella
7
Q
Imagine knee joint and label parts of bone
A
8
Q
Two parts of bone
A
- Cortex - dense compact bone, outermost layer is called periosteum, inner most layer endosteum
- Medulla - central cavity contains bone marrow, composed of fat which is less dense compared to cortical bone
9
Q
Trauma radiograph checklist
A
- Patient info
- Bone and joint alignment
- Joint spacing
- Cortical outline
- Soft tissues
PASCS
10
Q
Why is patient information important when reviewing x-ray?
A
- Appearances of bones and joints change with age
11
Q
Things to comment on about joint/bone alignment
A
- Loss of alignment can be due to a fracture or joint dislocation
- Joints can be partially subluxed or completely dislocated
- Soft tissue injuries are difficult to interpret on x-ray
12
Q
Joint spacing changes x-ray
A
- Widening from dislocation?
- Arthritis = narrowing
- Use other joints for comparison
- Joint spacing varies with age
13
Q
How to look for fractures
A
- Trace around cortical outline of bone
- Most fractures cause some cortical disruption - luscent or sclerotic
- THERE MAY BE MORE THAN ONE
14
Q
Principles of interpreting x-rays
A
- check all views - minimum of two
- Compare with opposite side
- Compare to previous imaging
- Review clinical information
- Review whole radiograph
15
Q
How to describe a fracture
A
- Location
- Morphology
- Displacement
- Angulation
- Joint involvement
Look more deeply at joints