Knuckles at the back of the hand permit the fingers to maneuver ahead and backward. They are really very important in battle sports like wrestling and boxing. Boutonniere Deformity: The MCP (metacarpophalangeal) joints as well as DIP (distal interphalangeal) joints are afflicted. The primary damage would be to flexion on the https://www.theorthopaedicandpainpractice.com/what-are-the-different-bones-found-in-my-hand/