Seven cases of Pseudomonas osteomyelitis were seen, all occurring in young black male drug addicts. The site of involvement was alway adjacent to a septic arthritis or disc-space infection due to the same organism and included (a) lumbosacral spine, (b) cervical spine, (c) pubic symphysis, (d) ribs, (e) ischial tuberosity, (f) sacroiliac joint, and (g) hip joint. Radiologic features included narrowing of joint spaces with bone destruction and sclerosis. The diagnosis was made by culture of the organism from the site of involvement in 6 cases and by blood culture in one. All patients were treated with immobilization and gentamicin 3 mg∕kg intramuscularly. Radiologic and clinical improvement was noted in all.
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Salahuddin et al. (1973) studied this question.