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[How much are external fixator nuts tightened in general practice]

T Härer1, D Höntzsch, E Stöhr

  • 1Berufsgenossenschaftliche Unfallklinik Tübingen.

Aktuelle Traumatologie
|June 1, 1993
PubMed
Summary

Properly tightened external fixation devices ensure optimal orthopedic treatment. A torque of 8-11 Nm is sufficient for securing external fixators, utilizing the AO (ASIF) tubular system.

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Area of Science:

  • Orthopedic surgery
  • Biomechanical engineering
  • Trauma care

Context:

  • External fixation is a standard orthopedic treatment.
  • 21 assembly variations of the AO (ASIF) tubular system were evaluated.
  • Clinical trials were conducted across three major trauma centers.

Purpose:

  • To assess the effectiveness of different external fixation assemblies.
  • To determine the optimal torque for securing external fixator nuts.
  • To validate the use of a specific torque-wrench.

Summary:

  • Experimental analysis indicated that a torque range of 8-11 Nm is adequate for external fixator nuts.
  • This torque level is recommended for ensuring stability and proper function.
  • The AO (ASIF) tubular system was utilized in the evaluated modalities.

Impact:

  • Provides evidence-based guidance for orthopedic surgeons on external fixation.
  • Contributes to improved patient outcomes through standardized fixation techniques.
  • Highlights the importance of precise torque application in orthopedic hardware.

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