Clinical trial NCT01577524: The Use of Diluted Povidone Iodine Irrigation in Spine Surgery
Official title: The Use of Diluted Povidone Iodine Irrigation in Spine Surgery
Study type: INTERVENTIONAL
Overall status: TERMINATED
Phase: PHASE2
Conditions: Surgical Site Infection
Lead sponsor: Attabib, Najmedden, M.D.
Sponsor class: INDIV
First posted: 2012-04-16
Enrollment: 58
Sex: ALL
Minimum age (years): 18
Maximum age (years): 75
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Allocation: RANDOMIZED
Intervention model: PARALLEL
Primary purpose: PREVENTION

Brief summary: The purpose of the study is to determine whether diluted Povidone Iodine solution used to irrigate surgical wounds during spine surgery decreases the incidence of surgical site infections.

Detailed description: Post-operative infections in spine surgery have been extensively investigated in the literature. These investigations focus on the efficacy of using peri-operative antibiotics, Povidone Iodine skin preparations, the effects of shaving around the surgical sit, and the use of intra-operative diluted Povidone Iodine wound irrigation in preventing post-operative infections.

Povidone-iodine is a complex of polyvinyl pyrrolidine and tri-iodine ions widely used as an antiseptic agent. It has bactericidal activity against a wide spectrum of pathogens, including methicillin-resistant Staphylococcus aureus (MRSA). The safety of its use intra-operatively has been evaluated in animal studies and also supported through Randomized Controlled Trials in spinal surgery and in other surgical subspecialties.

The purpose of this study is to evaluate the efficacy of the intra-operative use of diluted Povidone Iodine solution in reducing post-operative infections when used for irrigating surgical incisions during spinal surgery compared with 0.9% Sodium Chloride Irrigation Solution (i.e. normal saline solution).

The primary outcome measure will be seen as a reduction in the number of post-operative infections. As a result and although not directly measured, it is suspected that a reduction in post-operative infections may result in quicker healing with fewer complications and pain.

Eligibility criteria: Inclusion Criteria:

* Age of 18-75
* Undergoing posterior surgical spinal procedure for degenerative spine disease, extra-dural tumors, trauma, or spinal deformity
* No obvious potential infective focus
* Patient willing to enroll

Exclusion Criteria:

* Age \<18 or \>75
* Identified infective focus in the body, including furuncles,or acne at surgical incision site
* Patient with discitis or spinal osteomyelitis
* Dural tear
* Potential use of Bone Morphogenic Protein (BMP)
* Iodine hypersensitivity
* Out of province patients due to difficulty in arranging follow up visits
* Minimal invasive spine surgical procedure (MISS) due to difficulty of having diluted Betadine solution contact soft tissue with the use if MISS retractors
* Pregnancy
* Inability to provide informed consent

Primary outcomes:
measure: Number of post-operative infections diagnosed in both treatment and control groups
timeFrame: Twelve months post operation
Secondary outcomes:
Other outcomes:
Locations:
city: Saint John
country: Canada
facility: Saint John Regional Hospital
state: New Brunswick
Study officials:
affiliation: Neurosurgery Department, Saint John Regional Hospital
name: Najmedden Attabib, MD
role: PRINCIPAL_INVESTIGATOR
References:
citation: Celik SE, Kara A. Does shaving the incision site increase the infection rate after spinal surgery? Spine (Phila Pa 1976). 2007 Jul 1;32(15):1575-7. doi: 10.1097/BRS.0b013e318074c39f.
citation: Cheng MT, Chang MC, Wang ST, Yu WK, Liu CL, Chen TH. Efficacy of dilute betadine solution irrigation in the prevention of postoperative infection of spinal surgery. Spine (Phila Pa 1976). 2005 Aug 1;30(15):1689-93. doi: 10.1097/01.brs.0000171907.60775.85.
citation: Georgiade G, Riefkohl R, Georgiade N, Georgiade R, Wildman MF. Efficacy of povidone-iodine in pre-operative skin preparation. J Hosp Infect. 1985 Mar;6 Suppl A:67-71. doi: 10.1016/s0195-6701(85)80048-7.
citation: Goldenheim PD. In vitro efficacy of povidone-iodine solution and cream against methicillin-resistant Staphylococcus aureus. Postgrad Med J. 1993;69 Suppl 3:S62-5.
citation: Horan TC, Gaynes RP, Martone WJ, Jarvis WR, Emori TG. CDC definitions of nosocomial surgical site infections, 1992: a modification of CDC definitions of surgical wound infections. Infect Control Hosp Epidemiol. 1992 Oct;13(10):606-8. No abstract available.
citation: Rubinstein E, Findler G, Amit P, Shaked I. Perioperative prophylactic cephazolin in spinal surgery. A double-blind placebo-controlled trial. J Bone Joint Surg Br. 1994 Jan;76(1):99-102.
citation: Schubert R. Disinfectant properties of new povidone-iodine preparations. J Hosp Infect. 1985 Mar;6 Suppl A:33-6. doi: 10.1016/s0195-6701(85)80043-8.
citation: Sindelar WF, Brower ST, Merkel AB, Takesue EI. Randomised trial of intraperitoneal irrigation with low molecular weight povidone-iodine solution to reduce intra-abdominal infectious complications. J Hosp Infect. 1985 Mar;6 Suppl A:103-14. doi: 10.1016/s0195-6701(85)80054-2.
citation: Strohecker J, Piotrowski WP, Lametschwandtner A. The intra-operative application of povidone-iodine in neurosurgery. J Hosp Infect. 1985 Mar;6 Suppl A:123-5. doi: 10.1016/s0195-6701(85)80057-8.
citation: Wilson AP, Treasure T, Sturridge MF, Gruneberg RN. A scoring method (ASEPSIS) for postoperative wound infections for use in clinical trials of antibiotic prophylaxis. Lancet. 1986 Feb 8;1(8476):311-3. doi: 10.1016/s0140-6736(86)90838-x.
citation: Fang A, Hu SS, Endres N, Bradford DS. Risk factors for infection after spinal surgery. Spine (Phila Pa 1976). 2005 Jun 15;30(12):1460-5. doi: 10.1097/01.brs.0000166532.58227.4f.
citation: Charlson ME, Pompei P, Ales KL, MacKenzie CR. A new method of classifying prognostic comorbidity in longitudinal studies: development and validation. J Chronic Dis. 1987;40(5):373-83. doi: 10.1016/0021-9681(87)90171-8.