Staphylococcal arthritis and polyarthritis are two types of joint infections caused by the bacteria Staphylococcus aureus. These infections occur when the bacteria enter the joint and cause inflammation, swelling, and pain. Staphylococcal arthritis affects a single joint, while polyarthritis affects multiple joints.
Staphylococcal arthritis can occur in any joint, but it most commonly affects the knee, hip, and ankle. The infection can be caused by direct contamination of the joint, such as from a penetrating injury or surgery, or by the spread of the bacteria from another part of the body through the bloodstream. Symptoms of staphylococcal arthritis include joint pain, stiffness, and swelling, as well as fever and chills in some cases.
Polyarthritis, on the other hand, affects multiple joints and can be caused by a variety of factors, including autoimmune disorders, viral or bacterial infections, and genetic factors. Staphylococcal polyarthritis is a rare form of the disease that occurs when the bacteria spread to multiple joints through the bloodstream. Symptoms of polyarthritis include joint pain and swelling, as well as fatigue and fever.
Diagnosis of staphylococcal arthritis and polyarthritis usually involves a physical exam, blood tests, and imaging studies such as x-rays or MRIs. Treatment for these conditions typically involves antibiotics to kill the bacteria causing the infection, as well as pain relief and physical therapy to help restore joint function. In some cases, surgery may be necessary to drain fluid from the joint or remove damaged tissue.
Staphylococcal arthritis and polyarthritis can be serious conditions if left untreated. However, with prompt diagnosis and appropriate treatment, most people recover fully and can return to normal activities. By taking steps to prevent infection and seeking prompt medical attention when necessary, you can help protect your joints and maintain your overall health and well-being.