NCT05640336

Brief Summary

The purpose of this research is to evaluate two different standard of care surgeries in treating periprosthetic joint infection (PJI) after total hip and knee arthroplasty. Researchers are looking at differences in outcomes following single versus planned double debridement, antibiotics, and implant retention (DAIR) for acutely infected total hip arthroplasty (THA), and total knee arthroplasties (TKAs).

Trial Health

75
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
490

participants targeted

Target at P75+ for not_applicable

Timeline
71mo left

Started Mar 2023

Longer than P75 for not_applicable

Geographic Reach
1 country

2 active sites

Status
enrolling by invitation

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress35%
Mar 2023Mar 2032

First Submitted

Initial submission to the registry

November 28, 2022

Completed
9 days until next milestone

First Posted

Study publicly available on registry

December 7, 2022

Completed
3 months until next milestone

Study Start

First participant enrolled

March 3, 2023

Completed
9 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 1, 2032

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

March 1, 2032

Last Updated

December 18, 2025

Status Verified

December 1, 2025

Enrollment Period

9 years

First QC Date

November 28, 2022

Last Update Submit

December 10, 2025

Conditions

Keywords

Total knee arthroplastyTotal hip arthroplasty

Outcome Measures

Primary Outcomes (1)

  • Subjects free from failure

    Total number of subjects considered failure free at one year from surgical DAIR procedure. Failure is defined as reoperation for infection within one year from surgical procedure.

    1 year following DAIR.

Secondary Outcomes (9)

  • Readmission within 90 days of the surgical DAIR procedure

    90 days following DAIR procedure

  • 1-year surgical reoperation rate

    1 year following DAIR procedure

  • 5-year surgical reoperation rate

    5 years following DAIR procedure

  • 10-year surgical revision rate

    10 years following DAIR procedure

  • Hospital length of stay

    Approximately 2 weeks following DAIR procedure

  • +4 more secondary outcomes

Study Arms (2)

Single DAIR Surgery Arm

ACTIVE COMPARATOR

Subjects will undergo a single Debridement Antibiotics and Implant Retention (DAIR) surgical procedure, along with IV antibiotics and followed by oral suppressive antibiotics. This method is currently used and considered to be standard of care.

Procedure: Single Debridement, Antibiotics and Implant Retention

Double DAIR Surgery Arm

ACTIVE COMPARATOR

Subjects will undergo planned double Debridement Antibiotics and Implant Retention (DAIR) surgical procedure, along with IV antibiotics and followed by oral suppressive antibiotics. This method is currently used and considered to be standard of care.

Procedure: Planned Double Debridement, Antibiotics and Implant Retention

Interventions

Surgical debridement and wash out of infected joint. The polyethylene (plastic) insert, which acts as the articulating surface (modular component) of the prosthesis, will be removed and the exposed surfaces scrubbed, sterilized, and soaked. A new modular component will be placed with additional irrigation and antiseptic soak. Tissue cultures will be sent to the lab for further evaluation and antibiotic guidance. After the operation subjects will continue six weeks of IV antibiotics followed by oral antibiotic suppression for the life of the implant or at least two years after operation.

Single DAIR Surgery Arm

Surgical debridement and wash out of infected joint with an additional irrigation and debridement scheduled for approximately 5 days after the initial DAIR. During the first washout, antibiotic cement beads will be placed in the joint and these will remain in the interim until they are removed during the second washout. During the second DAIR, the antibiotic beads are removed, and the modular components are once again removed and replaced with new components. Exposed surfaces are again irrigated and debrided following a standardized protocol. A six-week course of IV antibiotics will follow the DAIR with additional oral antibiotics for the life of the component (standard of care) or at least a minimum of two years.

Double DAIR Surgery Arm

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Patients who speak English and are willing to sign the consent form
  • Patients with acute early postoperative infection (symptoms ≤ 4 weeks from surgery; symptoms \< 4 weeks in duration) and acute hematogenous infection (greater than 4 weeks from surgery; symptoms \< 3 weeks in duration) of a primary total knee or total hip arthroplasty, defined as:
  • A sinus communicating with the prosthesis OR
  • Two positive cultures obtained from the prosthesis OR
  • of 5 criteria: Elevated ESR (\> 30mm/hr) and CRP (\> 10mg/L); Elevated synovial leukocyte count (\>3000 cells/μL) or change of ++ on; leukocyte esterase strip; Elevated synovial neutrophil percentage (\> 80%); One positive culture; Positive histological analysis of periprosthetic tissue (\> 5 neutrophils per high; Power field in 5 high power fields x 400).
  • OR Patient with an acute infection diagnosed clinically by an orthopedic surgeon treated with DAIR

You may not qualify if:

  • Patients with a chronic PJI, defined as: presentation of symptoms \> 4 weeks in duration.
  • Revision surgery or previous two-stage reimplantation.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (2)

Mayo Clinic Florida

Jacksonville, Florida, 32224, United States

Location

Mayo Clinic Minnesota

Rochester, Minnesota, 55905, United States

Location

Related Links

MeSH Terms

Interventions

DebridementAnti-Bacterial Agents

Intervention Hierarchy (Ancestors)

Surgical Procedures, OperativeAnti-Infective AgentsTherapeutic UsesPharmacologic ActionsChemical Actions and Uses

Study Officials

  • Matthew Abdel, MD

    Mayo Clinic

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principal Investigator

Study Record Dates

First Submitted

November 28, 2022

First Posted

December 7, 2022

Study Start

March 3, 2023

Primary Completion (Estimated)

March 1, 2032

Study Completion (Estimated)

March 1, 2032

Last Updated

December 18, 2025

Record last verified: 2025-12

Data Sharing

IPD Sharing
Will not share

Locations