Intraoperative Disinfection by Pulse Irrigation with Povidone-Iodine Solution in Spine Surgery

Table 1

IRI score.

---

National Nosocomial Infections Surveillance

---

ASA Score

 1-2: 0 points

 3-4: 1 point

Duration of surgery

 <75%: 0 points

 >75%: 1 point

Wound class

 I-II: 0 points

 III-IV: 1 point

---

Above the threshold value of duration for that category of surgery (239 minutes); clean, clean/contaminated; contaminated, dirty/infected; IRI: Infection Risk Index; ASA score + duration of surgery + wound class = IRI score.