A fracture is often a cracked or broken bone that occurs when the force exerted on a bone is more robust when compared to the bone by itself. Boutonniere Deformity: The MCP (metacarpophalangeal) joints along with the DIP (distal interphalangeal) joints are impacted.  The key destruction will be to flexion from https://www.theorthopaedicandpainpractice.com/what-are-the-different-bones-found-in-my-hand/