(a Device for making modest holes) to poke a handful of small holes in the bone underneath the cartilage. Like abrasion arthroplasty, this process is used to have the layer of bone under the cartilage to supply a healing reaction.  (OCD), a ailment in which a chunk of your cartilage https://www.theorthopaedicandpainpractice.com/what-are-cartilage-lesions/