Joint effusion a resultant large effusion due to inflammation. Gout is usually present with recurrent attacks of acute inflammatory arthritis (red, tender, hot, swollen joint). It is caused by elevated levels of uric acid in the blood that crystallizes and deposits in joints, tendons, and surrounding tissues. Gout affects 1% of individuals in Western populations at some point in their lives. Trauma from ligamentous, osseous or meniscal injuries can result in an effusion. These are often hemarthrosis or bloody effusions. Rest Joint effusion A joint effusion is the presence of increased intra-articular fluid. It may affect any joint. Commonly it involves the
Post-traumatic arthritis Post-traumatic arthritis Post-traumatic arthritis (PTA) is a form of osteoarthritis following an injury to a joint. Post-traumatic arthritis is a form of osteoarthritis and the former can occur after the latter. However, post-traumatic arthritis can also occur after the development of chronic inflammatory arthritis. Generally, post-traumatic arthritis is classified in two groups: post-traumatic osteoarthritis and post-traumatic inflammatory arthritis. Post-traumatic osteoarthritis is the most common variation of post-traumatic arthritis. Between 20 and 50% of all osteoarthritis cases are preceded by post-traumatic arthritis. Patients having post-traumatic osteoarthritis are usually younger than osteoarthritis patients without any previous physical injuries. Less common is post-traumatic