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Updated: Jul 24, 2025

In Vivo Mouse Model of Spinal Implant Infection
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Efficacy Of Prophylactic Intrawound Application Of Vancomycin Powder In Preventing Surgical Site Infections In Spinal

Shah Khalid1, Shahbaz Ali Khan1, Attiya Nasir1

  • 1Department of Neurosurgery, Ayub Medical College Abbottabad, Pakistan.

Journal of Ayub Medical College, Abbottabad : JAMC
|July 9, 2023
PubMed
Summary
This summary is machine-generated.

Intrawound vancomycin powder significantly reduces surgical site infections (SSI) after spinal instrumentation surgery in low-income countries. This effective prophylactic method is recommended for high-risk patients.

Keywords:
Risk factors; PreventionSSI; Incidence

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Area of Science:

  • Neurosurgery
  • Infectious Disease Prevention
  • Surgical Outcomes

Background:

  • Surgical site infection (SSI) poses a significant challenge in spinal instrumentation procedures, particularly in low-income settings.
  • Effective strategies are needed to mitigate SSI risk in these vulnerable patient populations.

Purpose of the Study:

  • To evaluate the efficacy of local intrawound vancomycin powder in reducing postoperative SSI.
  • To assess the impact of vancomycin powder on SSI rates following thoracolumbar-sacral spinal instrumentation.

Main Methods:

  • A randomized controlled trial involving 78 patients undergoing posterior spinal instrumentation (transpedicular screw fixation).
  • Patients were divided into two groups: one receiving 1 gm of vancomycin powder applied locally over the implant (Vanco group) and a control group.
  • Standard systemic antibiotic prophylaxis was administered to all participants.

Main Results:

  • The Vanco group demonstrated a statistically significant reduction in SSI rates (5.2%) compared to the control group (20.5%).
  • The mean age of participants in the vancomycin group was 36±16.6 years, and in the control group was 33.7±15.9 years.

Conclusions:

  • Intrawound vancomycin powder administration is a highly effective method for decreasing SSI after spinal instrumentation.
  • This prophylactic technique is strongly recommended for patients identified as high-risk for developing surgical site infections.