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Updated: May 14, 2026

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Single-use instrumentation, cutting blocks, and trials decrease contamination during total knee arthroplasty: a

Michael A Mont1, Aaron J Johnson, Kimona Issa

  • 1Center for Joint Preservation and Replacement, Rubin Institute for Advanced Orthopedics, Baltimore, Maryland 21215, USA. mmont@lifebridgehealth.org

The Journal of Knee Surgery
|January 30, 2013
PubMed
Summary

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This summary is machine-generated.

Replacing traditional surgical tools with specialized, single-use items in total knee arthroplasty significantly reduced operating room contamination. This innovation shows promise for improving patient safety and reducing deep infections.

Area of Science:

  • Orthopedic Surgery
  • Infection Control
  • Biomedical Engineering

Background:

  • Operating room contamination is a significant concern in total knee arthroplasty (TKA).
  • Traditional instrumentation in TKA can harbor contaminants, potentially leading to deep joint infections.
  • Minimizing contamination is crucial for improving patient outcomes and reducing healthcare-associated infections.

Purpose of the Study:

  • To evaluate the effectiveness of specialized, single-use instruments in reducing contamination during TKA.
  • To compare contamination levels between navigated and nonnavigated TKA procedures using novel instrumentation.
  • To assess the potential of single-use components to decrease operating room contamination and infection risk.

Main Methods:

  • A prospective controlled trial involving 400 total knee arthroplasty procedures.

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  • Comparison of contamination metrics between traditional and single-use instruments (saws, cutting blocks, trials).
  • Data collected across 6 institutions with 8 surgeons, measuring compromised tray sterility indicators, pans, and instruments.

    • Main Results:

    • A significant decrease in contamination was observed with the use of single-use instruments.
    • Contamination compromises were reduced by 57% in nonnavigated and 32% in navigated TKA procedures.
    • Single-use instruments demonstrated promising benefits in reducing microbial load in the surgical field.

    Conclusions:

    • Specialized, single-use instruments can effectively decrease operating room contamination during total knee arthroplasty.
    • Further research is warranted to confirm the safety and efficacy of single-use instruments for widespread adoption.
    • The adoption of single-use instruments, cutting guides, and trial implants holds potential for reducing deep infections after TKA.