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Frontal sinus ablation for frontal osteomyelitis
Abstract:
Frontal sinusitis with frontal osteomyelitis is a potentially life threatening disease. Diagnostic and therapeutic errors occur frequently because of antibiotic masking of already silent frontal lobe complications or lack of suspicion on the part of the otolaryngologist or the neurosurgeon. Frontal sinus infection and/or trauma frequently require otoneuro cooperation for care. Four cases of complications of frontal sinus infection with osteomyelitis are discussed. Three had epidural empyemas and one had a subdural empyema with an anterior 1/3 superior sagittal sinus thrombosis and multiple brain abscesses. Each patient was approached through a frontal craniotomy and the frontal sinus posterior plate examined from behind. Each had posterior dehiscences. Follow-up of osteomyelitis requires multiple tests including computerized tomography, polytomography and possibly bone or gallium scans. Twenty year or more follow-up is essential.
Insights
Frontal sinusitis with frontal osteomyelitis can be life-threatening, often masked by antibiotics. Early diagnosis and neurosurgical intervention are crucial for managing severe complications like brain abscesses.
Area of Science:
- Otolaryngology
- Neurosurgery
- Infectious Disease
Background:
- Frontal sinusitis with frontal osteomyelitis presents a significant risk, often complicated by delayed diagnosis due to antibiotic masking or low clinical suspicion.
- Effective management necessitates collaboration between otolaryngologists and neurosurgeons, particularly when frontal sinus infections lead to intracranial complications.
Observation:
- Four cases illustrate severe complications of frontal sinus infections, including epidural and subdural empyemas.
- One case involved a subdural empyema with superior sagittal sinus thrombosis and multiple brain abscesses, highlighting the potential severity.
Findings:
- Surgical intervention via frontal craniotomy revealed posterior dehiscences in the frontal sinus posterior plate in all cases.
- These dehiscences likely facilitated the intracranial spread of infection.
Implications:
- Aggressive surgical management and prolonged follow-up are essential for patients with frontal osteomyelitis.
- Multimodal imaging (CT, polytomography, bone/gallium scans) and long-term monitoring (20+ years) are critical for assessing treatment efficacy and preventing recurrence.
