Does Disinfection of the Subcutaneous Tissue Reduce Contamination of the Operating Field With P. Acnes?

Not Applicable

• Conditions: Surgical Incision
• Interventions: Procedure: subcutaneous tissue disinfection

• Registration Number: NCT04250649
• Lead Sponsor: Hôpital du Valais

Brief Summary

Propionibacterium acnes is a pathogen commonly identified in postoperative shoulder infections. A recent study has shown that P. acnes is likely to be disseminated in the operating field from the subcutaneous layer by the manipulation of soft tissues by the surgeon and the instruments. Disinfection of the subcutaneous tissue seems to significantly reduce contamination of the operating field during primary shoulder surgery. This study seeks to assess the efficacy of disinfection of the subcutaneous tissue compared to dissection with an electrosurgical unit on P. acnes contamination during primary shoulder surgery.

Detailed Description

The investigators are going to study the efficacy of disinfecting the subcutaneous tissue with Betadine standard solution during primary shoulder surgery compared to electrosurgical dissection. They will randomize 105 patients on two arms. The control group receiving no disinfection of the subcutaneous tissue but a dissection with an electric cautery(A) and intervention group receiving a disinfection of the subcutaneous tissue (B). They believe that the duration of 4 years is sufficient to recruit the number of patients necessary for this study.

All patients 18 years of age or older admitted to Valais Hospital for primary shoulder surgery and having signed the consent of the study will be eligible.

The use of disinfection of the subcutaneous tissue during primary shoulder surgery could reduce contamination of the operating field and theoretically the post-operative infection rate after primary shoulder surgery.

The study focuses on disinfection with Betadine solution of the subcutaneous tissue during primary shoulder surgery. This action could decrease contamination of the operating field and the infection rate after primary shoulder surgery.

This solution is already widely used for disinfecting the skin and traumatic or surgical wounds.

The investigators will use it according to the recommendations made in the Swiss Compendium of Medicines.

No evidence has been brought to a decrease in this contamination if the dissection is carried out with an electric cautery. Scalpel dissection is used as standard in orthopedic surgery as well as in other surgical disciplines.

Study Timeline

• Status Verified: 2020-01
• Study First Submitted: 2020-01-28
• Study First Submitted QC: 2020-01-30
• Last Update Submitted: 2020-01-30
• Study First Posted: 2020-01-31
• Last Update Posted: 2020-01-31
• Study Start: 2020-03-31
• Primary Completion: 2022-03-31
• Study Completion: 2024-03-31

Recruitment & Eligibility

• Status: UNKNOWN
• Sex: All
• Target Recruitment: 105

Inclusion Criteria

1. = or> 18 years old
2. treated at the Valais Hospital for primary shoulder surgery.
3. have signed the consent

Exclusion Criteria

1. <18 years old
2. History of shoulder surgery
3. History of shoulder infection
4. Antibiotic therapy in the 2 weeks preceding the intervention
5. Cortisone infiltration in the 6 months preceding the intervention
6. Allergy to iodinated contrast agent or Cefuroxime
7. Allergy to povidone iodine complex or other contraadication to Betadine
8. Refusal of study terms

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
Intervention	subcutaneous tissue disinfection	Betadine solution disinfection of the subcutaneous tissue during primary shoulder surgery

Primary Outcome Measures

Name	Time	Method
positive sample	4 years	Compare the positive bacteriological sample rate during an open shoulder surgery procedure with a disinfection of the subcutaneous tissue compared to an operating procedure without disinfection but dissection with an electric knife.

Trial Locations

Locations (1)

Hôpital du Valais; 🇨🇭 Martigny, Valais, Switzerland