👉 Fissural is a medical term used to describe an area of bone that has been replaced by bone fragments. It's often seen in cases where the original bone was removed for surgery or other reasons, and it can be caused by trauma, infection, or dislocation. The fissural area is typically found at the end of bones, such as those on the fingers, toes, or jaw. In some cases, it may also occur near other bones, like the neck or spine. Fiss