Definition: The term "post-epiphysis" is used to describe the process of bone formation, where a bone grows from a pre-existing bone. This is typically found in the spine, and it involves the growth of new bones that are attached to the existing ones through ligaments or other structures. In the context of post-epiphysis, it refers to the process by which the end of a bone (such as a vertebra) grows into a new bone. This is an important step