Application of magnetic rods for fixation in orthopedic treatments

Tatiana Shelyakova, Alessandro Russo, Andrea Visani, Valentin Alek Dediu, Maurilio Marcacci

Research output: Contribution to journalArticlepeer-review

Abstract

Achieving an efficient fixation for complicated fractures and scaffold application treatments is a challenging surgery problem. Although many fixation approaches have been advanced and actively pursued, the optimal solution for long bone defects has not yet been defined. This paper promotes an innovative fixation method based on application of magnetic forces.The efficiency of this approach was investigated on the basis of finite element modeling for scaffold application and analytical calculations for diaphyseal fractures. Three different configurations have been analyzed including combinations of small cylindrical permanent magnets or stainless steel rods, inserted rigidly in the bone intramedullary canals and in the scaffold. It was shown that attractive forces as high as 75. N can be achieved. While these forces do not reach the strength of mechanical forces in traditional fixators, the employment of magnetic rods is expected to be beneficial by reducing considerably the interface micromotions. It can additionally support magneto-mechanical stimulations as well as enabling a magnetically assisted targeted delivery of drugs and other bio-agents.

Original languageEnglish
Pages (from-to)101-106
Number of pages6
JournalComputers in Biology and Medicine
Volume61
DOIs
Publication statusPublished - Jun 1 2015

Keywords

  • Bone fixation
  • Computer simulation
  • Fracture treatments
  • Magnetic application
  • Magnetic forces
  • Scaffold fixation

ASJC Scopus subject areas

  • Computer Science Applications
  • Health Informatics
  • Medicine(all)

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