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Rheumatology & Joint Diseases

Septic Arthritis

ICD-10 Code
M00.9

Standardized diagnosis for Septic Arthritis.

Clinical Presentation & Protocol

Patient Usually Complains Of

Patient presents with acute onset of monoarticular joint pain, swelling, warmth, and restricted range of motion. Associated with systemic symptoms including fever, chills, and malaise. Denies recent trauma, but reports [recent skin infection/joint injection/immunosuppression]. Pain is constant, exacerbated by movement or weight-bearing.

Clinical Examination Findings

Affected joint demonstrates significant erythema, localized warmth, and tense effusion. Tenderness to palpation is severe. Passive and active range of motion are markedly limited due to pain. No signs of cellulitis or surrounding soft tissue abscess. Systemic exam reveals tachycardia and febrile status.

Treatment Protocol

Urgent joint aspiration (arthrocentesis) for synovial fluid analysis (cell count, Gram stain, culture, and crystals). Initiate empiric intravenous broad-spectrum antibiotics pending culture results. Orthopedic consultation for urgent surgical washout/debridement. Pain management with analgesics and joint immobilization.

Detailed clinical guide coming soon.