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ORIGINAL RESEARCH article

Front. Bioeng. Biotechnol.

Sec. Biosensors and Biomolecular Electronics

This article is part of the Research TopicBiomechanical Evaluation of Bone Structural Integrity: Experimental, Computational, and Clinical PerspectivesView all articles

Quantitative Evaluation of Fracture Healing Progression in rats' femurs with Modal Damping Factor and Conventional Methods

Provisionally accepted
Stavros  ChalikiasStavros Chalikias1John  SarrisJohn Sarris2Stefania  AthanasopoulouStefania Athanasopoulou2Malvina  OrkoulaMalvina Orkoula2Christos  KontoyannisChristos Kontoyannis2VASSILIS  KOSTOPOULOSVASSILIS KOSTOPOULOS2Spyridon  PsarrasSpyridon Psarras2Nikolaos  PapaioannouNikolaos Papaioannou3Efstathios  ChronopoulosEfstathios Chronopoulos4Ismene  DontasIsmene Dontas3Sofia  PanteliouSofia Panteliou2*
  • 1University Hospital Crosshouse, Kilmarnock, United Kingdom
  • 2Panepistemio Patron, Patras, Greece
  • 3Geniko Nosokomeio Attikes KAT, Athens, Greece
  • 4Ethniko kai Kapodistriako Panepistemio Athenon, Athens, Greece

The final, formatted version of the article will be published soon.

Quantitative determination of bone fracture healing through objective measurements on fracture area during healing phases is of paramount importance. Simultaneous Modal Damping Factor (MDF) testing in comparison to peripheral Quantitative Computed Tomography (pQCT), Raman Spectroscopy (RS), Absorbed and Fracture Energy, was performed. MDF is a non-invasive index based on model's dynamic characteristics by applying vibration excitation. The method has already been successfully applied as structural integrity monitoring tool of defective conventional and advanced materials, including bones. We investigated whether MDF may demonstrate the proper time to have a functional and biomechanically adequately strengthened callus in osteotomized rat femurs. From the measured properties values intervals it is revealed that MDF correlates with all properties and feels with higher sensitivity the bone quality changes due to fracture and due to bone fracture healing in comparison to all other properties. The result extracted is that MDF monitors bone fracture healing and correlates with all parameters examined in a more accurate and sensitive way than any of the conventional methods. Research findings support the belief that MDF can be considered as the most convenient among the methods examined for monitoring the bone fracture healing process.

Keywords: Moda1, Damping2, Fracture3 Healing4, bone5, animal model

Received: 01 Sep 2025; Accepted: 21 Nov 2025.

Copyright: © 2025 Chalikias, Sarris, Athanasopoulou, Orkoula, Kontoyannis, KOSTOPOULOS, Psarras, Papaioannou, Chronopoulos, Dontas and Panteliou. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

* Correspondence: Sofia Panteliou, sofiapanteliou@gmail.com

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