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Updated: Aug 4, 2026
In Vivo Mouse Model of Spinal Implant Infection
Published on: June 23, 2020
[Wound infection after spinal surgery: analysis of 15 cases]
1Peking Union Medical College Hospital, Beijing.
Abstract:
Fifteen of 714 patients undergoing spine surgery had postoperative wound infection, with an overall infection rate of 2.1%. There was infection rate of 0.4% in spine surgery without metal instrumentation and 2.9% in spine fusion with metal internal instrumentation. Coagulase positive staphylococcus aureus was the commonest pathogen. Factors related to infection were discussed and preventive measures were suggested. Irrigation-suction technique without removal of metal instruments and bone grafts was recommended for the treatment of postoperative infection. A high pseudarthrosis rate was found in the infected patients after spine fusion with metal instrumentation.
Insights
Spine surgery patients had a 2.1% infection rate, higher with metal implants (2.9%). Staphylococcus aureus was common. Irrigation-suction is recommended for treatment.
Area of Science:
- Orthopedic Surgery
- Infectious Disease
Context:
- Postoperative wound infections are a significant complication in spine surgery.
- Metal instrumentation in spine fusion may increase infection risk.
Purpose:
- To determine the incidence of postoperative wound infection in spine surgery.
- To identify risk factors and pathogens associated with these infections.
- To evaluate treatment strategies and outcomes, particularly pseudarthrosis rates.
Summary:
- The study found an overall spine surgery infection rate of 2.1% (15/714 patients).
- Infection rates were 0.4% without instrumentation and 2.9% with metal internal instrumentation.
- Coagulase-positive Staphylococcus aureus was the most frequent pathogen. Infected patients with instrumentation had a high pseudarthrosis rate.
Impact:
- Findings highlight the increased risk of infection with spinal instrumentation.
- Recommends irrigation-suction technique for treating infections without removing implants or grafts.
- Suggests preventive measures to reduce postoperative spine surgery infections.
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