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16 Cards in this Set
- Front
- Back
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What is a bennett fracture?
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fracture at the base of the thumb at the carpal/metacarpal joint
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What is a rolondo fracture?
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Comminuted Fracture at the base of the thumb that extends into the joint
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What is a psuedo-bennett fracture?
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Comminuted fracture at the base of the thumb that doesn't extend to the joint
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Therapy for a bennett fracture?
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Internal fixation
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What is a mallet finger or a baseball finger?
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Avulsion injury at the base of the distal phalanx; where the extensor digitorum inserts
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What is a gamekeeper's fracture?
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Avulsion injury of the ulnar aspect of the first metacarpophalangeal joint; insertion site of the ulnar collateral ligament; internal fixation
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What will lunate/perilunate dislocation look like on radiographs
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The lunate is displaced volarly and the capitate is displaced dorsally and the line that should go thorugh the middle of the capitate, lunate and radius is disrupted
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What is a common fracture ass with lunate/perilunate dislocation?
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Transscaphoid
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What view will you look at to see a hook of the hamate fracture?
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Carpal tunnel view
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How might you get lunate/perilunate dislocation or hook of hamate fractures?
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Fall on outstretched hand
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What is the terry thomas sign?
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Abnormal scaphoid/lunate seperation caused by a fall on an outstretched hand; Due to disruption of the schaolunate ligament adn rotary subluxation of the scaphoid
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What is a complication of scaphoid fx and why?
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Avascular necrosis of the proximal portion; b/c blood supply start distal and goes proximal
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How do you diagnosis avascular necrosis?
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Increased density/sclerosis
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What is avascular necrosis of the lunate called?
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Kienbock malacia
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What is keinbock malacia associated with?
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Negative ulnar variance (ulna shorter than the radius)
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What is a common avulsion fracture of the wrist and what does it look like?
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Triquetrial fx; lateral film-small chip of bone located dorsally
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