M65.172

Clinical Causes: Bacterial infections, commonly caused by bacteria such as Staphylococcus aureus or Streptococcus species Spread from a nearby infected wound or skin infection Penetrating injuries or puncture wounds to the ankle or foot that introduce bacteria directly into the joint or tendon sheath Secondary to systemic infections that metastasize to joint or tendon regions Contiguous spread from adjacent infected tissues or osteomyelitis (bone infection)

Key Symptoms: Pain localized around the ankle and foot, often worsening with movement Swelling and warmth in the affected areas Tenderness upon touch Restricted mobility and stiffness in the ankle and foot Possible redness visible over the affected joints or tendons Fever and general malaise in more severe cases In some instances, pus may be present if abscess formation occurs

Diagnosis Path: Medical history review, including recent injuries, wounds, or infections Physical examination focusing on swelling, tenderness, and range of motion Imaging studies such as ultrasound or MRI to visualize inflammation, fluid accumulation, or abscess formation Laboratory tests, including blood work to check for signs of infection like elevated white blood cell counts and inflammatory markers Synovial fluid analysis obtained via joint or tendon sheath aspiration to identify the causative organism through culture and sensitivity testing

Treatment Protocols: Antibiotic therapy tailored to the identified infectious organism, often administered intravenously initially Surgical drainage or debridement to remove purulent material and infected tissue if abscesses are present Rest and immobilization of the affected ankle and foot to reduce strain on inflamed tissues Pain management using analgesics as prescribed Physical therapy and gradual mobilization once the infection resolves to restore function Monitoring for potential complications, such as chronic infection or joint damage