Fibrocartilage callus

When you get a bone fracture, your body tries to fix it by creating a special type of material called a "callus." This callus is like a little cushion that helps protect and stabilize the broken bone while it heals.

Sometimes, when a fracture happens near a joint (which is where two bones meet and allow you to move your body), the callus that forms is made of a type of tissue called "fibrocartilage." This tissue is a bit different from regular bone or muscle tissue, because it's kind of like a cross between the two.

The fibrocartilage callus is especially important when the injury happens in a joint, because it helps the joint move smoothly while the bone is healing. It's almost like your body is building a little pillow or cushion around the fracture site, so that you don't feel as much pain and stiffness while you're recovering.

So, in simpler terms, the fibrocartilage callus is a special cushion that your body creates around a broken bone near a joint, to help protect and stabilize the bone while it heals.