[Surgical treatment of sternoclavicular osteomyelitis]

Osteomyelitis of the sternocosto-clavicular (SCC) articulation is a rare infection usually caused by Staphylococcus aureus and enterobacteria. It usually occurs in individuals with osteoarticular disease or predisposing factors. Prolonged antibiotic treatment and articular puncture are generally accepted. Authors do not agree on an established protocol. We report three cases of SCC septic arthritis in two previously healthy patients with two foci of infection (one perianal abscess and one dental extraction) and in one adult patient with Still's disease. Pain and intense inflammation was referred to the shoulder, with scarce leukocytosis and fever reaching 38 degrees C. The germs responsible were S. aureus, Bacteroides fragilis and B. oralis. Two of the patients had local, regional abscesses. Long-term antibiotic treatment failed in all cases and surgery for SCC resection and myoplasty of the pectoralis major muscle was required. Recovery was good and shoulder and arm mobility was excellent. We propose medical treatment and articular diagnostic-therapeutic puncture as the first line of therapy for this disease. When evolution is poor or when complications appear, such as abscesses or mediastinitis, we conclude that radical debridement and myoplasty of the pectoralis major muscle are indicated.