👉 Synosteoses are a type of joint where two or more bones meet at an angle. This type of joint is often seen in people with conditions such as rheumatoid arthritis, which causes inflammation and pain in joints. The bones that make up the synosteosis typically include cartilage, bone, and tendons. The synosteosis can be caused by a variety of factors, including injury or infection, but it can also occur due to other medical conditions like osteoarthritis. If