👉 Periosteally is a medical terminology that describes the relationship between bone and cartilage, which are both composed of tough, hard tissue. In this context, it refers to the process by which bone (perioste) grows around and surrounds cartilage (cartilage) in the joints. In simpler terms, periosteally means that when bone is growing around a joint, it pushes against the cartilage, which then forms a bond between them. This process helps to protect the joint from injury