What does "MCP joint" mean in a report or doctor's letter? In our medical dictionary, you will find a patient-friendly explanation of the meaning of this medical term.
The MCP joint, or Metacarpophalangeal joint, is a term used in medicine to describe the large joints in the hand where the fingers and thumb meet the hand. They are the knuckles you see when you make a fist. These joints are important for hand function, allowing us to bend, straighten, and spread our fingers and thumb.
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