Q:

A 73 year old woman with RA (rheumatoid arthritis) is unable to extend the fingers of her right hand at the MCP joint and IP joints following a fall. What is the single most likely tendon to have been damaged?

waelhammad
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2022-11-05
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A 73 year old woman with RA (rheumatoid arthritis) is unable to extend the fingers of her right hand at the MCP joint and IP joints following a fall. What is the single most likely tendon to have been damaged?

  1. Extensor carpi radialis
  2. Extensor carpi ulnaris
  3. Extensor digitorum
  4. Extensor indicis
  5. Flexor digitorum profundum
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waelhammad
2022-11-05
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The key is C. Extensor digitorum. [The extensor digitorum extends the phalanges, then the wrist, and finally the elbow. It acts principally on the proximal phalanges].

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