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Sternoclavicular Joint Septic Arthritis.

Sternoclavicular septic arthritis is a rare infection that has been described in healthy adults and immunocompromised individuals. It accounts for 1% to 9% of septic arthritis. Before the antibiotic era, the most common pathogenic species were within the genus Fusobacterium, described in 1936 by Lemierre as necrobacilliosis or postanginal septicemia, which affected otherwise healthy adults.3,4 In the postantibiotic era, anaerobic organisms have been rarely reported.5 Instead, the isolated organisms are frequently related to bacteremic complications of intravenous access devices or intravenous drug abusers.