Can povidone-iodine solution be used safely in a spinal surgery?

Area of Science:

• Orthopedic Surgery
• Infectious Disease Control
• Wound Healing Research

Background:

• Intra-operative surgical wound contamination is a known risk.
• Povidone-iodine is a broad-spectrum disinfectant, but its safety in spinal surgery is debated due to potential negative effects on wound healing and bone union.
• Evaluating povidone-iodine's safety in spinal procedures is crucial for patient care.

Purpose of the Study:

• To prospectively evaluate the safety and efficacy of diluted povidone-iodine solution for wound irrigation in spinal surgeries.
• To assess the impact of povidone-iodine on wound healing, infection rates, spinal bone fusion, and clinical outcomes.

Main Methods:

• A prospective, single-blinded, randomized study involving 244 patients undergoing primary instrumented lumbosacral posterolateral fusion.
• Patients were divided into two groups: study group (povidone-iodine irrigation followed by saline) and control group (saline only).
• Exclusion criteria included prior spinal surgery, trauma, tumors, infections, inflammatory conditions, metabolic bone disease, and immunosuppression.

Main Results:

• Both groups showed significant improvements in pain scores, function (JOA), and ambulatory capacity.
• The povidone-iodine group had no infections, while the control group had six deep infections (P<0.05).
• No significant differences were observed in fusion rates, wound healing, or clinical outcomes between the groups.

Conclusions:

• Diluted povidone-iodine solution is safe for use in spinal surgeries.
• Povidone-iodine irrigation does not negatively influence wound healing, bone union, or clinical outcomes in spinal fusion procedures.
• Povidone-iodine irrigation may help reduce infection rates in spinal surgery.