M46.41

Clinical Causes: Bacterial infection, commonly from organisms like Staphylococcus aureus or Streptococcus species Spread of infection from nearby tissues or systemic infections Hematogenous spread through the bloodstream Recent spinal surgery or trauma Immunocompromised states, such as in patients with diabetes, HIV/AIDS, or on immunosuppressive therapy Infections originating from skin or other distant sites

Key Symptoms: Severe neck pain that may worsen with movement Limited neck mobility, stiffness Fever and chills in some cases Signs of neurological impairment, such as weakness, numbness, or tingling in the arms or legs General fatigue or malaise Swelling or tenderness in the neck area Possible signs of spinal cord compression, such as difficulty walking or bladder/bowel dysfunction

Diagnosis Path: Medical history and physical examination focusing on neurological signs and neck tenderness Blood tests to identify infection markers, such as elevated ESR or CRP Blood cultures to detect causative organisms Magnetic resonance imaging (MRI) is the preferred imaging modality, providing detailed views of soft tissues, discs, and the spinal cord Computed tomography (CT) scans may assist in bone detail assessment Biopsy or aspiration of the disc space may be necessary for microbiological analysis to confirm the specific pathogen

Treatment Protocols: Prolonged course of antibiotics tailored to the identified organism Rest and immobilization to reduce pain and prevent further injury Pain management with medications Monitoring for neurological deterioration Surgical procedures in cases of spinal instability, abscess formation, or neurological compromise—may include debridement, drainage, or spinal stabilization Addressing underlying causes or sources of infection, including managing systemic illnesses