Non-Necrotizing Streptococcal Cellulitis as a Cause of Acute, Atraumatic Compartment Syndrome of the Foot: A Case Report.

Acute compartment syndrome is widely accepted as a surgical emergency. Most cases of acute compartment syndrome occur after high-energy trauma, especially crush injuries. We present a unique case of acute, atraumatic compartment syndrome of the foot associated with infectious cellulitis. A 53-year-old male, with a medical history significant for human immunodeficiency virus, presented to the emergency department secondary to an insidious onset of intense foot pain, swelling, and an inability to bear weight on the affected extremity. He had no history of recent trauma. He was admitted to the hospital because of a suspected infection and subsequently was given intravenous antibiotics. During the admission, he developed a severe infection, and blood cultures demonstrated growth of group A streptococcus. No abscess or hematoma was identified on magnetic resonance imaging or during exploratory surgery. The findings from intraoperative cultures were negative. Despite proper medical care for his infection, the lower extremity pain worsened; therefore, compartmental pressures were obtained at the bedside. Multiple compartment pressures were measured and were >40 mm Hg. Compartment syndrome was diagnosed, and the patient was taken to the operating room for emergent fasciotomies. Surgical release of the medial, lateral, interosseous, and adductor compartments revealed copious amounts of serosanguinous drainage. Again, no definitive hematoma or purulence was identified. The patient's symptoms resolved after the fasciotomies, and he healed uneventfully. Our case highlights the need to consider acute compartment syndrome in the differential diagnosis for pain out of proportion to the clinical situation, even when a traditional etiology is absent.