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Which fracture is characterized by the distal radius moving distally & posterior?
- Colle's Fracture (Dinner Fork Deformity).
- Fractures are always named according to the movement of the distal fragment.
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What are the 2 causes for a missing pedicle?
- 1. Agenesis: remaining pedicle is brighter & bigger (hypertrophy as compensation).
- 2. Metastatic disease: spread to the bone & ate it away pedicle in older patients.
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Name 5 features indicating a congenital block.
- 1. Wasp waist.
- 2. Concavity.
- 3. One level (usually).
- 4. Rudementary discs.
- 5. Lamina & SP's fused (posteriorly).
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How can you tell if an oblique view is posterior?
- closer to body = posterior.
- closer to spinous = anterior.
- Remember: marker indicates side touching the bucky.
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What are the 3 views that make up a standard cervical study?
- 1. Lateral cervical neutral.
- 2. AP-lower cervical.
- 3. APOM.
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How can you differentiate between a PA chest view & an AP thoracic view?
Chest views are always taken PA so the heart & lungs are closest to the bucky.
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Elongated TP's can occur anywhere in the spine. True or false?
False: only @ C7.
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Name some characteristics indicating that a tumor is benign.
- 1. Well defined.
- 2. Narrow zone of transition.
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Which IVF are you looking at with a RAO?
Right IVF.
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Is a calcified thyroid cartilage clinically significant?
No.
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Calcification of the ALL indicates which pathology? Are the disc spaces narrowed or preserved?
DISH = disc space preserved.
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What is normal ADI range for adults? And children?
- Adult: 1-3 mm.
- Child: 3-5 mm.
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The mitchell marker is in the middle. Is the patient standing or recumbent?
Recumbent.
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Bone is bright white on which type of imaging?
- CT!
- (remember that a transverse cut can be either CT or MRI).
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Which structure are you looking at with lumbar obliques?
- The pars.
- Put your hands @ a 45* angle on abdomen... you want to see the flat surface of the hand.
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What would a spondyloptosis @ L5 that has gone anterior to the sacrum look like?
- An inverted napolean hat (gendarme's cap).
- Grade 2+ spondylolisthesis = L5 vertebral body & TP become superimposed over the sacral base & ala.
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How can you tell if a film is the original or a copy?
Copies have a little notch in the corner.
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What does CPPD stand for?
- Calcium Pyrophosphate Deposition (Disease).
- Arthritis with crystals within fibrocartilage.
- Graniness in the articulation zone.
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Describe a Colle's Fracture, a/k/a Dinner Fork Deformity.
- The distal radius has moved distally & posterior.
- Remember: fractures are named for the position of the distal fragment.
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Which disease is characterized by softening of the bone?
- Osteomalacia.
- Rickets in children.
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Name 2 pathologies commonly associated with protrusio-acetabuli.
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Which pathology is associated with a "paint brush mataphysis?"
- Rickets.
- Also looking for widened growth plates of long bones.
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Which disease is associated with the "White Line of Frankel?"
- Scurvy.
- White line of Frankel: a/k/a dense zone of provisional calcification resulting in a delayed conversion to bone.
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What is an a/k/a for the characteristic "ring epiphysis" assocaited with scurvy?
Winberger's Sign.
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Name the 4 clinical finding associated with acromegaly.
- 1. Thick skin = thick heel pad.
- 2. Skull/facial changes/
- 3. Large hand & distal tufts.
- 4. Increased ADI space.
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Brown tumors are associated with which pathology?
- Brown tumors = hyperparathyroidism.
- Brown tumors are lytic lesions.
- Hallmark sign/HPTH: subperiosteal resorption of the outer cortex @ ligament/tendon insertions.
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Which is more thin, fibrocartilage or hyaline cartilage?
- Hyaline cartilage: thin, linear, parallel to articular cortex.
- Fibrocartilage: thick, irregular.
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Gull Wing Sign is associated with which pathology?
- Erosive Osteoarthritis (EOA).
- Presents with: DJD changes with bone erosions... Affecting DIP joints... Central erosions = Gull Wing's Sign.
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What type of tissue does RA attack?
Synovial tissue.
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Where are Haygarth's Nodes located?
MCP joints.
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"Rat Bites" are associated with which pathology?
RA.
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In regards to RA, which joint presents with the "Zigzag Deformity?"
The wrist (carpal bones).
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Which pathology is "Rugger Jersey Sign" associated with?
Hyperparathyroidism.
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What is the a/k/a for a lemellated periosteal reaction?
Onion-skin.
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CT or MRI?
- MRI!
- Bone is bright white on CT!
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Name this view.
RAO.
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What is characteristic of a compression fracture?
- The anterior height is less than the posterior height.
- Patients may elect to have vertebroplasty = bright white on film.
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Ward's Triangle is associated with which pathology?
Osteoarthritis.
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Rickets is associated with both paint brush meatphysis & the white line of frankel. True or false?
- False.
- Rickets: paint brush metaphysis.
- Scurvy: white line of frankel.
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Which pathology is associated with both Brown Tumors & the characteristic Salt & Pepper Skull?
Hyperparathyroidism.
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