Neutron microtomography to investigate the bone-implant interface - Comparison with histological analysis

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MARC

Guillaume, FlorianÉcole de technologie supérieure ETS,University Paris-Est Créteil (author)

Neutron microtomography to investigate the bone-implant interface - Comparison with histological analysis

Article/chapterEnglish2021

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2021-05-04
IOP Publishing,2021
11 s.

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LIBRIS-ID:oai:lup.lub.lu.se:85cd43d7-2794-4358-938e-3f4872698fd4
https://lup.lub.lu.se/record/85cd43d7-2794-4358-938e-3f4872698fd4URI
https://doi.org/10.1088/1361-6560/abf603DOI

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Language:English
Summary in:English

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Subject category:ref swepub-contenttype

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Bone properties and especially its microstructure around implants are crucial to evaluate the osseointegration of prostheses in orthopaedic, maxillofacial and dental surgeries. Given the intrinsic heterogeneous nature of the bone microstructure, an ideal probing tool to understand and quantify bone formation must be spatially resolved. X-ray imaging has often been employed, but is limited in the presence of metallic implants, where severe artifacts generally arise from the high attenuation of metals to x-rays. Neutron tomography has recently been proposed as a promising technique to study bone-implant interfaces, thanks to its lower interaction with metals. The aim of this study is to assess the potential of neutron tomography for the characterisation of bone tissue in the vicinity of a metallic implant. A standardised implant with a bone chamber was implanted in rabbit bone. Four specimens were imaged with neutron tomography and subsequently compared to non-decalcified histology to stain soft and mineralised bone tissues, used here as a ground-truth reference. An intensity-based image registration procedure was performed to place the 12 histological slices within the corresponding 3D neutron volume. Significant correlations (p < 0.01) were obtained between the two modalities for the bone-implant contact (BIC) ratio (R = 0.77) and the bone content inside the chamber (R = 0.89). The results indicate that mineralised bone tissue can be reliably detected by neutron tomography. However, the BIC ratio and bone content were found to be overestimated with neutron imaging, which may be explained by its sensitivity to non-mineralised soft tissues, as revealed by histological staining. This study highlights the suitability of neutron tomography for the analysis of the bone-implant interface. Future work will focus on further distinguishing soft tissues from bone tissue, which could be aided by the adoption of contrast agents.

Subject headings and genre

MEDICIN OCH HÄLSOVETENSKAP Medicinsk bioteknologi Biomedicinsk laboratorievetenskap/teknologi hsv//swe
MEDICAL AND HEALTH SCIENCES Medical Biotechnology Biomedical Laboratory Science/Technology hsv//eng
bone
histological staining
image registration
neutron tomography
osseointegration
titanium implant

Added entries (persons, corporate bodies, meetings, titles ...)

Le Cann, SophieUniversity Paris-Est Créteil(Swepub:lu)bme-shl (author)
Tengattini, AlessandroInstitut Laue Langevin,University Grenoble Alpes (author)
Törnquist, ElinLund University,Lunds universitet,Avdelningen för Biomedicinsk teknik,Institutionen för biomedicinsk teknik,Institutioner vid LTH,Lunds Tekniska Högskola,Department of Biomedical Engineering,Departments at LTH,Faculty of Engineering, LTH(Swepub:lu)el5152to (author)
Falentin-Daudre, Céline (author)
Albini Lomami, HuguesUniversity Paris-Est Créteil (author)
Petit, YvanÉcole de technologie supérieure ETS (author)
Isaksson, HannaLund University,Lunds universitet,Avdelningen för Biomedicinsk teknik,Institutionen för biomedicinsk teknik,Institutioner vid LTH,Lunds Tekniska Högskola,Building Bone Killing Bugs,Forskargrupper vid Lunds universitet,Department of Biomedical Engineering,Departments at LTH,Faculty of Engineering, LTH,Lund University Research Groups(Swepub:lu)soli-hai (author)
Haïat, GuillaumeUniversity Paris-Est Créteil (author)
École de technologie supérieure ETSUniversity Paris-Est Créteil (creator_code:org_t)

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In:Physics in Medicine and Biology: IOP Publishing66:100031-91551361-6560

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