M00.151

Clinical Causes: Bacterial infection: The primary cause is the dissemination of Streptococcus pneumoniae bacteria from a primary site of infection, such as pneumonia or an ear infection. Bloodstream infection: Bacteria can enter the bloodstream (bacteremia) and reach the hip joint, leading to infection. Spread from nearby infections: Although less common, infections from adjacent tissues or bones can spread to the joint.

Key Symptoms: Joint pain: Usually severe and localized to the right hip. Swelling: Noticeable swelling around the affected joint. Redness and warmth: The skin over the joint may appear red and feel warm to the touch. Stiffness: Reduced range of motion in the hip, making movement painful. Fever: Often accompanied by a general feeling of illness or fever. Loss of function: Difficulty walking or bearing weight on the affected side.

Diagnosis Path: Physical exam: To assess swelling, warmth, and range of motion. Blood tests: To detect infection markers and identify bacteria in the blood. Joint aspiration: Removing fluid from the joint space for analysis, including Gram stain, bacterial cultures, and cell counts. Imaging studies: X-rays, MRI, or ultrasound to assess joint damage and exclude other causes. Microbiological confirmation: Culturing the joint fluid or blood to confirm the presence of Streptococcus pneumoniae.

Treatment Protocols: Antibiotic therapy: Prompt administration of targeted antibiotics based on bacterial sensitivity to eradicate the infection. Drainage: If there is significant joint fluid accumulation, surgical drainage may be necessary. Pain management: Use of medications to alleviate joint pain and inflammation. Rest and immobilization: Limiting movement to reduce further joint damage during acute infection. Supportive care: Physical therapy may be recommended after initial treatment to restore joint function, once the infection resolves. Monitoring: Regular follow-up to ensure the infection is fully cleared and to assess for potential joint damage.