Wound Closure (Allgower) Versus Secondary Open Wound Healing After Removal of the External Fixator (Pinsides)

August 6, 2022 updated by: Reto Babst, Luzerner Kantonsspital

"Wound Closure (Allgower) Versus Secondary Open Wound Healing of the Pin Sites After Removal of the External Fixator: Study Protocol for a Prospective, Randomized Controlled Mono-center Trial"

In this prospective randomized controlled single-center trial, based on a non-inferiority design, the outcome of the treatment of patients are analyzed, whereas in half of the cases the wounds are left open and the other ones are primary wound closed after local debridement after Fixator-Extern is removed. Although this topic embodies a daily business, there is no standard to be found in literature regarding the treatment of pin sites with closure by either primary or secondary intent.

Study Overview

Detailed Description

In the orthopedic department of the Kantonsspital Lucerne (LUKS) after removal of the external fixator, the pin sites at the tibia and the back of the foot are routinely treated with primary wound closure. An international survey carried out by the LUKS shows that in comparison to our standard treatment the majority of surgeons left the pin sites open during the healing process. In order to find a standardized method to treat pin sites we conduct a randomized controlled trial, in which half of the pin site wounds are left open and the other half are treated by primary wound closure after local debridement (Treatment of the first pin-side will be randomized, then alternated treatment of the consecutive pin-sides). All patients of the study participants are treated within a fixed pre- and postoperative protocol, which includes antibiotic prophylaxis with a single shot of Cefazolin 2g intravenously 30 minutes prior to surgery. The postoperative pin care includes daily inspection of the pin sites, cleaning the secondary healing wound with Ringerfundin © and disinfection with Betadine ©. Primary wound closures are dressed with dry gaze bandage. The following out-patient treatment is provided either by a Spitex support, the family doctor or by the patient himself, depending on the patients compliance. Regular follow-up consultations at 2, 6, 12, 24 and 52 weeks after surgery ensure an adequate surveillance of the healing process, whereas the examining doctor at the second and last consultation was kept in dark what therapy was chosen for pin sites of the patient. To objectify the clinical progress the pin sites are photo documented at the consultations at week 2 and 52.

Study Type

Interventional

Enrollment (Actual)

241

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

      • Lucerne, Switzerland
        • Luzerner Kantonsspital

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • ADULT
  • OLDER_ADULT
  • CHILD

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Completed 18th year of age
  • Supply by external fixator
  • Signed informed consent for study participation

Exclusion Criteria:

  • Patients with immunodeficiency (HIV / hepatitis infection, leukemia, steroid therapy, autoimmune therapy)
  • Patients who can not perform a follow-up treatment for structural reasons (tourists, not home canton) or other reasons
  • Lack of knowledge of German
  • Lack of consent to study participation
  • invalid patients

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: TREATMENT
  • Allocation: RANDOMIZED
  • Interventional Model: PARALLEL
  • Masking: SINGLE

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
ACTIVE_COMPARATOR: Primary wound healing
Primary woundclosure in Allgöwer suture technique
We compare the outcome of primary wound closure (Allgower) and secondary open wound healing by comparing infection-rates, use of antibiotics, reoperation-rates, satisfaction of the patients and optical results using the Vancouver scar scale
NO_INTERVENTION: Secondary wound healing
no closure, open wound healing

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Post surgical pin side wound infections according to center of disease control (CDC)
Time Frame: up to 12 weeks after surgery
up to 12 weeks after surgery

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Surgical wound revision of the pin sides, carried out antibiotic therapy in a wound infection
Time Frame: up to 52 weeks after surgery
up to 52 weeks after surgery
Time to wound healing of the pin sides
Time Frame: up to 6 weeks after surgery
Definition wound healing: complete epithelialization
up to 6 weeks after surgery
Vancouver scar scale
Time Frame: up to 52 weeks after surgery
ExercisingPigmentation 0-2, Vascularity 0-3, Pliability 0-5, Height 0-3, so that the score has got a total score reaching from 0 up to 13
up to 52 weeks after surgery
subjective perception of the wounds
Time Frame: up to 52 weeks after surgery
questionnaire on subjective preference of the patient
up to 52 weeks after surgery

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (ACTUAL)

January 1, 2019

Primary Completion (ACTUAL)

February 28, 2021

Study Completion (ACTUAL)

February 28, 2021

Study Registration Dates

First Submitted

February 8, 2019

First Submitted That Met QC Criteria

February 14, 2019

First Posted (ACTUAL)

February 15, 2019

Study Record Updates

Last Update Posted (ACTUAL)

August 9, 2022

Last Update Submitted That Met QC Criteria

August 6, 2022

Last Verified

August 1, 2022

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

UNDECIDED

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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