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In Vivo Mouse Model of Spinal Implant Infection

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Risk Factors for Surgical Site Infections Following Neurosurgical Spinal Fusion Operations: A Case Control Study.

Thomas L Walsh¹, Ashley M Querry², Sheila McCool²

¹1Division of Infectious Diseases,University of Pittsburgh Medical Center,Pittsburgh,Pennsylvania.

Infection Control and Hospital Epidemiology

|December 20, 2016

Summary

This summary is machine-generated.

Surgical site infections (SSIs) after spinal fusion are predicted by longer procedures, higher American Society of Anesthesiologists scores, recent hospitalizations, and prior methicillin-resistant Staphylococcus aureus (MRSA) colonization. MRSA colonization is a strong, modifiable risk factor for SSIs.

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Surgical Approach and Complications of Stand-alone Lateral Trans-Psoas Interbody Fusion

Surgical Approach and Complications of Stand-alone Lateral Trans-Psoas Interbody Fusion

Published on: February 14, 2025

Area of Science:

Neurosurgery
Infectious Disease Epidemiology
Patient Safety

Background:

Surgical site infections (SSIs) are a significant complication following spinal fusion procedures.
Identifying risk factors is crucial for developing effective prevention strategies in neurosurgery.

Purpose of the Study:

To investigate independent risk factors associated with the development of SSIs in patients undergoing spinal fusion.
To identify modifiable and nonmodifiable predictors of SSI in this patient population.

Main Methods:

Retrospective case-control study involving neurosurgery patients who underwent spinal fusion.
Analysis of 5,473 procedures, comparing patients with SSIs (cases) to those without (controls).
Multivariate analysis to determine independent predictors of SSI, including procedure duration, patient factors, and prior colonization.

Main Results:

The incidence of SSIs was 2.94% (161 SSIs).
Independent predictors of SSI included longer procedure duration, American Society of Anesthesiologists (ASA) score of 3 or 4, and prior 30-day hospitalization.
Prior nasal colonization with methicillin-resistant Staphylococcus aureus (MRSA) was strongly associated with a 20-fold increased odds of developing SSI.

Conclusions:

While anterior surgical approach was protective, several factors independently predict SSI risk.
Prior MRSA colonization represents a critical, modifiable risk factor for SSIs following spinal fusion.
Targeting MRSA decolonization may significantly reduce SSI rates in neurosurgical patients.