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Clinical Trials/NCT03928522
NCT03928522CompletedPhase 4

Prospective Randomized Study Investigating the Characterization of Antibiotics From Antibiotic Impregnated Cement After Total Knee Arthroplasty

Washington University School of Medicine1 site in 1 country60 target enrollmentStarted: January 28, 2019Last updated:
Conditions
Interventions
Drugs

Trial Snapshot

Phase
Phase 4
Status
Completed
Enrollment
60
Locations
1
Primary Endpoint
Amount of Vancomycin and Tobramycin Eluted From Hand Mixed Cement With Both Antibiotics After Total Knee Arthroplasty

Study Overview

Brief Summary

The purpose of the study is to characterize and quantify the level of antibiotics eluted from antibiotic laden cement after primary cemented total knee arthroplasty.

Patients will be identified by medical record review to make sure they meet inclusion and exclusion criteria.

Patients that qualify and sign consent will be randomized to 1 of 4 antibiotic cement groups which are pre-mixed tobramycin, hand-mixed tobramycin, hand mixed vancomycin, and hand-mixed tobramycin and hand mixed vancomycin. Study patients will be blinded to their study group. Intraoperative fluid from the knee prior to surgery and postoperative drain fluid from the knee postoperatively will be collected as well.

Detailed Description

Patients will be identified by medical record review to make sure they meet inclusion and exclusion criteria.

Patients that qualify and sign consent will be randomized to 1 of 4 antibiotic cement groups which are pre-mixed tobramycin, hand-mixed tobramycin, hand mixed vancomycin, and hand-mixed tobramycin and hand mixed vancomycin. Study patients will be blinded to their study group. Intraoperative fluid from the knee prior to surgery and postoperative drain fluid from the knee postoperatively will be collected as well.

Study Design

Study Type
Interventional
Allocation
Randomized
Intervention Model
Parallel
Primary Purpose
Treatment
Masking
Single (Participant)

Masking Description

patient will not know which antibiotic cement group they are in

Eligibility Criteria

Ages
18 Years to — (Adult, Older Adult)
Sex
All
Accepts Healthy Volunteers
No

Inclusion Criteria

  • Age over 18
  • Total knee arthroplasty for primary osteoarthritis performed by Dr. Rick Wright.
  • Primary diagnosis of knee osteoarthritis

Exclusion Criteria

  • Diminished mental capacity
  • Vancomycin allergy
  • Tobramycin allergy
  • Patient history requiring IV administration of vancomycin or tobramycin perioperatively
  • Chronic kidney disease stage III and stage IV

Arms & Interventions

Pre-mixed tobramycin

Active Comparator

patients will receive pre-mixed tobramycin cement

Intervention: pre-mixed tobramycin (Device)

hand mixed tobramycin

Active Comparator

patients will receive hand mixed tobramycin cement

Intervention: hand mixed tobramycin (Drug)

hand mixed vancomycin

Active Comparator

patients will receive hand mixed vancomycin cement

Intervention: hand mixed vancomycin (Drug)

hand-mixed vancomycin and tobramycin

Experimental

patients will receive hand mixed vancomycin and tobramycin

Intervention: hand mixed vancomycin (Drug)

hand-mixed vancomycin and tobramycin

Experimental

patients will receive hand mixed vancomycin and tobramycin

Intervention: hand mixed tobramycin (Drug)

Outcomes

Primary Outcomes

Amount of Vancomycin and Tobramycin Eluted From Hand Mixed Cement With Both Antibiotics After Total Knee Arthroplasty

Time Frame: 24 hours

We wanted to measure the effect of elution level of vancomycin and tobramycin together

Secondary Outcomes

No secondary outcomes reported

Investigators

Sponsor Class
Other
Responsible Party
Sponsor

Study Sites (1)

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