1. What is radionuclide imaging (bone scans) useful for?: - for stress & occult fractures that
will show new obsteoblastic activity
2. What is the foot x-ray series?: - PA
- oblique
- lateral
3. What structures form the hindfoot?: - talus and calcaneus
4. What structures form the midfoot?: - navicular
- cuboid
- 3 cuneiforms
5. What structures form the forefoot?: - five metatarsals
- 14 phalanges
6. What are the 3 arches of the foot and their functions?: - 2 longitudinal arches, which help
absorb force and aid in weight-bearing
- Transverse arch which helps with movement of foot
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,7. What are stress fractures also known as?: - fatigue or march fractures
8. Who are stress fractures MC in?: - military recruits
- young athletes doing vigorous exercise
- cyclical loading that overwhelms bone physiologic repair
9. What are clinical findings of stress fractures?: - pain at rest that is increased by walking
- swelling and point tenderness
10. What appears on x-ray for stress fractures?: - often appear normal initially
11. What appears on x-ray for stress fractures about 2-3 weeks post injury?: -
callous formation with the fracture healing noted
12. What type of imaging is often used to find stress occult fractures?: - Bone scan
- CT
- MRI
Any of these imaging modalities may be used to diagnose stress occult fractures
13. How are stress fractures treated?: 1. Protect in short leg cast, walking boot, or heavy stiff-soled
shoe
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, - restrict weight bearing for usually 3-4 weeks or until the pain is gone
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