M02.872

Clinical Causes: Infections in the gastrointestinal tract caused by bacteria such as Salmonella, Shigella, or Yersinia. Genitourinary infections, often related to bacteria like Chlamydia trachomatis. Other systemic infections that trigger immune responses affecting the joints. Genetic predispositions that increase susceptibility to reactive arthritis. Environmental factors and possible autoimmune mechanisms that provoke joint inflammation in response to infection.

Key Symptoms: Pain and tenderness in the left ankle and foot. Swelling and warmth around the affected joints. Limited range of motion in the ankle and foot. Redness and inflammation of the skin over the affected area. Possible fever or general feeling of illness during active phases. Recurring or persistent joint symptoms even after the initial infection has resolved.

Diagnosis Path: Diagnosis typically involves a combination of medical history, physical examination, and laboratory tests. Healthcare providers may look for recent infections or gastrointestinal or urinary symptoms. Blood tests can detect signs of inflammation, such as elevated ESR or CRP levels. Joint fluid analysis might be performed to exclude other causes of joint swelling. Imaging studies like X-rays can help rule out other joint conditions and assess joint damage.

Treatment Protocols: Nonsteroidal anti-inflammatory drugs (NSAIDs) to reduce pain and inflammation. Physical therapy to maintain joint mobility and strength. Use of corticosteroids in more severe cases to control inflammation. Treating any underlying infection with appropriate antibiotics when identified. Supportive measures such as rest, elevation of the affected limb, and applying ice packs. In some chronic cases, disease-modifying antirheumatic drugs (DMARDs) may be considered.