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Clinical Trials/NCT03849885
NCT03849885RecruitingPhase 4

Cutibacterium Dermal Colonization: Implications for Total Hip Arthroplasty

Colorado Joint Replacement1 site in 1 country496 target enrollmentStarted: February 2, 2019Last updated:
Conditions
Interventions
Drugs

Trial Snapshot

Phase
Phase 4
Status
Recruiting
Enrollment
496
Locations
1
Primary Endpoint
Propionibacterium colinization rate on hips of healthy subjects

Study Overview

Brief Summary

This study is being done to investigate the colonization rate(growth rate) of a particular type of low-virulence (does not typically cause infection) bacterium called Propionibacterium, more specifically P acnes, the same bacterium that is responsible for the majority of acne. Information affecting hip surgery is currently unknown.

Detailed Description

This study is being done to investigate the colonization rate(growth rate) of a particular type of low-virulence (does not typically cause infection) bacterium called Propionibacterium. The most common bacterium of this family is P acnes, the same bacterium that is responsible for the majority of acne. There is increasing evidence that infection with P acnes and other Propionibacterium is a significant source of failure following certain orthopaedic shoulder procedures. However, information affecting hip surgery is currently unknown. Our personal experience leads us to believe that the numbers are actually quite high, since we are seeing an increased rate of Propionibacterium infection of hip replacement in the community. However, this type of study has never been done before, and therefore we simply do not know an accurate estimate for the average hip replacement patient's risk for Propionibacterium infection following hip replacement.

Study Design

Study Type
Interventional
Allocation
Randomized
Intervention Model
Parallel
Primary Purpose
Diagnostic
Masking
None

Eligibility Criteria

Ages
18 Years to 85 Years (Adult, Older Adult)
Sex
All
Accepts Healthy Volunteers
Yes

Inclusion Criteria

  • Patients who are 18 to 79 85 years of age
  • CJR primary joint arthroplasty patients who are receiving care at Porter Adventist Hospital
  • CJR established primary knee or hip arthroplasty patients with a native hip joint (no replacement on the biopsy side) who volunteers as a research participant.
  • CJR patients without a previous arthroplasty procedure who have established care with our practice.

Exclusion Criteria

  • Previous history of hip infection
  • Current antibiotic use or antibiotic use within the past week
  • Previous history of Cutibacterium joint infection
  • Current immunodeficiency disease or disorder
  • Patients with active psoriatic disease or other focal inflammation over the hip
  • Previous total hip arthroplasty (bilateral for the case of TKA patients and healthy volunteers, contralateral for THA patients)

Arms & Interventions

Experimental Skin Prep with BPO

Experimental

Patients will undergo a skin cleansing protocols using 4% Chlorhexidine gluconate (CHG) cloths.

Following the CHG wipes, patients will be prepped with 5% BPO gel applied directly to the biopsy site.

After the skin prep, three 3-mm punch (Acu-Punch, Acuderm, Fort Lauderdale, FL) skin biopsies will performed for both an anterior-based hypothetical incision, and for a more lateral/posterior incision, for a total of 6 biopsies taken per subject.

Intervention: Benzoyl peroxide gel (Drug)

Outcomes

Primary Outcomes

Propionibacterium colinization rate on hips of healthy subjects

Time Frame: Tissues samples taken at the time of surgery will be held for 14 days

The rate at which Propionibacterium could be isolated from the skin of healthy subjects at locations corresponding to both the direct anterior and posterior surgical approaches with and without intervention.

Secondary Outcomes

No secondary outcomes reported

Investigators

Sponsor Class
Other
Responsible Party
Sponsor

Study Sites (1)

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