Tensile modulus of human orbital wall bones cut in sagittal and coronal planes

Krzysztof Żerdzicki; Paweł Lemski; Paweł Kłosowski; Andrzej Skorek; Marcin Adam Zmuda Trzebiatowski; Mateusz Koberda

doi:10.1371/journal.pone.0259363

Tensile modulus of human orbital wall bones cut in sagittal and coronal planes

Abstract

In the current research, 68 specimens of orbital superior and/or medial walls taken from 33 human cadavers (12 females, 21 males) were subjected to uniaxial tension untill fracture. The samples were cut in the coronal (38 specimens) and sagittal (30 specimens) planes of the orbital wall. Apparent density (ρapp), tensile Young’s modulus (E-modulus) and ultimate tensile strength (UTS) were identified. Innovative test protocols were used to minimize artifacts and analyze the obtained data: (1) grips dedicated to non-symmetrical samples clamping were applied for mechanical testing, (2) non-contact measuring system of video-extensometer was employed for displacement registration, (3) ink imprint technique coupled with CAD analysis was applied to precisely access the cross-sectional areas of tested samples. With regard to a pooled group, apparent density for the coronal and sagittal cut plane was equal 1.53 g/cm3 and 1.57 g/cm3, tensile Young’s modulus 2.36 GPa and 2.14 GPa, and ultimate tensile strength 12.66 MPa and 14.35 MPa, respectively. No significant statistical differences (p > 0.05) were found for all the analyzed parameters when comparing coronal and sagittal plane cut groups. These observations confirmed the hypothesis that direction of sample cut does not affect the mechanical response of the orbital wall tissue, thus suggesting that mechanical properties of orbital wall bone show isotropic character.

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Authors (6)

Krzysztof Żerdzicki dr inż.
Paweł Lemski lek. med.
- Gdański Uniwersytet Medyczny, Katedra i Klinika Otolaryngologii
Paweł Kłosowski prof. dr hab. inż.
Andrzej Skorek dr hab. med.
- Gdański Uniwersytet Medyczny, Katedra i Klinika Otolaryngologii
Marcin Adam Zmuda Trzebiatowski (formerly: Marcin Zmuda Trzebiatowski) dr inż.
Mateusz Koberda dr med.
- Gdański Uniwersytet Medyczny, Katedra i Klinika Okulistyki

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Keywords

TENSILE MODULUS,HUMAN BONE,ORBITAL WALL

Details

Category:

Articles

Type:

artykuły w czasopismach

Published in:

PLOS ONE no. 16,
ISSN: 1932-6203

Language:

English

Publication year:

2021

Bibliographic description:

Żerdzicki K., Lemski P., Kłosowski P., Skorek A., Zmuda Trzebiatowski M., Koberda M.: Tensile modulus of human orbital wall bones cut in sagittal and coronal planes// PLOS ONE -,iss. 11 (2021),

DOI: