M02.339

Clinical Causes: Infection with bacteria such as Salmonella, Shigella, Yersinia, or Chlamydia, which can trigger an immune response Genetic predisposition, including the presence of the HLA-B27 gene Environmental triggers, including certain bacterial infections that occur after gastrointestinal or genitourinary illnesses

Key Symptoms: Pain in the wrist joint, which may worsen with movement Swelling and tenderness around the wrist Reduced range of motion due to inflammation Fever or malaise in some cases Other joint involvements, such as knees, ankles, or feet Urethritis or conjunctivitis may precede joint symptoms in some instances

Diagnosis Path: Diagnosis involves a combination of medical history, physical examination, and laboratory tests. Clinicians may use blood tests to detect inflammation markers and check for the presence of the HLA-B27 gene. Joint X-rays can help rule out other conditions, but imaging may not always show early signs. Sometimes, synovial fluid analysis from the affected joint is performed to exclude infection or other causes of arthritis.

Treatment Protocols: Management of Reiter's disease affecting the wrist primarily focuses on relieving symptoms and controlling inflammation. Typical approaches include: - Nonsteroidal anti-inflammatory drugs (NSAIDs) to reduce pain and inflammation - Corticosteroids, either oral or injected directly into the joint, for more severe inflammation - Physical therapy to maintain joint function and mobility - Antibiotic therapy if an active bacterial infection is identified - Symptomatic management of associated symptoms like eye or urinary tract issues Most cases improve within a few months, but some individuals may experience longer-lasting or recurrent symptoms. Regular follow-up with healthcare providers is essential for optimal management.