Retrospective cohort of 113 pediatric patients with musculoskeletal infection. Asks whether giving antibiotics before tissue culture reduces culture yield or worsens outcomes. Patients stratified into local vs. disseminated infection groups.
24 hours. 81%
The traditional teaching — hold antibiotics until cultures are in hand. Was based on adult periprosthetic infection literature and reasonable intuition, not pediatric data. This study challenged that assumption directly and found no evidence it holds true in children with MSI.
When a child comes in with fever, bone pain, and a limp suggesting osteomyelitis or septic arthritis, start antibiotics promptly. Don't wait for the OR, don't wait for IR, don't wait for the culture swab. It won't improve your yield and, in local infection, it prolongs the hospital stay. Culture whatever tissue or fluid you obtain regardless of prior antibiotic exposure, because positivity rates hold steady for at least 24 hours after the first dose.
One nuance worth knowing: blood cultures are different. The consensus remains to draw blood cultures immediately at presentation before antibiotics, and this paper does not challenge that practice.
Retrospective cohort of 113 pediatric patients with musculoskeletal infection. Asks whether giving antibiotics before tissue culture reduces culture yield or worsens outcomes. Patients stratified into local vs. disseminated infection groups.
24 hours. 81%
The traditional teaching — hold antibiotics until cultures are in hand. Was based on adult periprosthetic infection literature and reasonable intuition, not pediatric data. This study challenged that assumption directly and found no evidence it holds true in children with MSI.
When a child comes in with fever, bone pain, and a limp suggesting osteomyelitis or septic arthritis, start antibiotics promptly. Don't wait for the OR, don't wait for IR, don't wait for the culture swab. It won't improve your yield and, in local infection, it prolongs the hospital stay. Culture whatever tissue or fluid you obtain regardless of prior antibiotic exposure, because positivity rates hold steady for at least 24 hours after the first dose.
One nuance worth knowing: blood cultures are different. The consensus remains to draw blood cultures immediately at presentation before antibiotics, and this paper does not challenge that practice.