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49 Cards in this Set
- Front
- Back
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What are the 5 basic densities seen on an xray? What are their associated colors?
***TEST |
Metal; bright white
Fluid/soft tissue: medium gray (muscle) Air: Black Fat: Dark Grey (***most missed) Bone: White |
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shows up bright white on xray
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metal
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shows up medium gray on xray
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fluid/soft tissue
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shows up black on an xray
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air
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shows up dark gray on an xray
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fat
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shows up white on an xray
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bone
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what bone is most likely to break on an outward stretched hand fall?
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scaphoid
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this bone often fractures in an outstretched hand fall
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scaphoid
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What type of diagnostic test is..
excellent for anatomic detail Will detect almost all pathology related to cortical bone injury Great for showing displacement or joint involvement |
CT
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what is the CT best for?
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Cortical bone injury
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if you see a soft tissue injury such as muscles, ligaments, tendons and cartilage what type of diagnostic test do you want to use?
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MRI
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what type of diagnostic test is good at showing water (edema)
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MRI
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ACL or PCL?
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PCL
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What is this?
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ACL tear
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What 3 things are always black on an MRI
****TEST |
air
cortical bone/tendons/ligaments flowing blood |
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what type of diagnostic test do you want to use to see stress fractures? It is injected into the vein can see tumors and infections
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Bone Scan
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name the modalities
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upper left: x-ray
upper right: bone scan Lower left: MRI Lower right: don't worry about |
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What modalities don't use radiation?
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MRI
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1. Distal Phalanx of left index
2. Middle Phalanx of left little finger 3. Proximal phalanx of left thumb 4. 3rd metacarpal |
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1. Capitate
2. Scaphoid 3. Hamate 4. Pisaform 5. Triquitrum 6. Lunate So long to pinky, here comes the thumb |
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1. Epiphysis
2. Growth plate 3. Meaphysis 4. Diaphysis |
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1. mid diaphysis of left radius
2. distal left radius at junction of metaphysis and diaphysis |
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most common fracture in adult elbow?
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radial head
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greater tuberosity is the blank one
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1. Tibia
2. Fibula 3. Talus 4. First meta carpal |
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1. Cuneiform(lateal)
2. Navicular 3. Talus 4. Cuboid 5. Calcaneous |
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whats going on here?
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fat pad displacement
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FAT BLOOD INTERFACE (FBI) Sign
top line fat bottom blood |
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type of fracture?
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avulsion fracture
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what is an avulsion fracture?
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A bone fragment is pulled
off at the attachment of a ligament or tendon |
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4 directions of fracture line
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transverse
oblique spiral longitudinal |
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if you have joint involvement what kind of scan do you want to order?
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CT scan
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Open vs Closed fracture
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fracture is open when exposed to air (laceration or gross exposure)
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tourus fracture is what and seen in?
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bulging of the cortex of bone
seen in kids |
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when talking about a fracture that is displaced, which fragment do we talk about?
****TEST |
DISTAL FRAGMENT
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what is going on in the ulna
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greenstick nondisplaced fracture of the ulna
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whats wrong?
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scaphoid is broken
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what is this?
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avulsion fracture of the distal phaylanx
goes into distal interphalangial joint |
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how would you describe this?
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spiral fracture of distal right fibula
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radial head fracture
oblique extends to articular surface at mid point of joint minimal distraction |
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osteophyte
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FAT-BLOOD
INTERFACE (FBI) SIGN is indicative of what? **** |
knee injury
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make sure to look for fat pad displacement on elbows and knees. He said to know this for the test
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i put pics up
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