Microfracture: Generating very small holes during the bone and bone marrow underneath the damaged cartilage, which stimulates the bone to repair itself (as a result of marrow cells), causing newly shaped cartilage difficulty. In the balanced joint, the cartilage separates the ends with the bones from coming into connection with each https://www.theorthopaedicandpainpractice.com/what-are-cartilage-lesions/