Research has demonstrated that many individuals with Crohnâs ileitis share a genetic mutation that may play a significant role in disease development. A hypersensitive immuno-response to a pathogenic presence, such as bacteria, within the gastrointestinal tract is also suspected of contributing to the disease's onset.
Secondary osteoarthritis occurs less frequently than primary (also known as idiopathic) osteoarthritis. Primary osteoarthritis means that there is no known cause for the joint breakdown.
A. Arthritis is a general term that means inflammation of the joints. Osteoarthritis, commonly known as wear and tear arthritis, is the most common type of arthritis. It is associated with a breakdown of cartilage in joints and can occur in almost any joint in the body.It commonly occurs in the weight-bearing joints of the hips, knees, and spine.It also affects the fingers, thumb, neck, and large toe. Osteoarthritis -- also called OA -- usually does not affect other joints unless previous injury, excessive stress or an underlying disorder of cartilage is involved.Cartilage is a firm, rubbery material that covers the ends of bones in normal joints.steoarthritis -- also called OA -- usually does not affect other joints unless previous injury, excessive stress or an underlying disorder of cartilage is involved. Cartilage is a firm, rubbery material that covers the ends of bones in normal joints.