Osteochondropathy

Osteochondropathy refers to a disease ("-pathy") of the bone and cartilage.

However, it is more common to refer to these conditions as one of the following:
 * chondropathy (disease of the cartilage)
 * A bone disease is also called an "osteopathy", but because the term osteopathy is often used to describe a healthcare approach, use of the term can cause some confusion.