Examination of annulus fibrosus and nucleus pulposus in cervical and lumbar intervertebral disc herniation patients by scanning acoustic microscopy, scanning electron microscopy and energy dispersive spectroscopy

Tanoren, Bukem; Dipcin, Beste; Birdogan, Selcuk; Unlu, Mehmet Burcin; Ozdol, Cagatay; Aghayev, Kamrhan

doi:10.1039/d3ra07195b

RSC Adv.

2024

DOI: 10.1039/d3ra07195b

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Examination of annulus fibrosus and nucleus pulposus in cervical and lumbar intervertebral disc herniation patients by scanning acoustic microscopy, scanning electron microscopy and energy dispersive spectroscopy

Bukem Tanoren,

Beste Dipcin,

Selcuk Birdogan

et al.

Abstract: Scanning acoustic microscopy, scanning electron microscopy and energy dispersive spectroscopy of annulus fibrous and nucleus pulposus tissues from patients with intervertebral disc herniation were performed, to analyse and determine the acoustic property variations in the tissues.

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Applying the Techniques of Materials Science towards an Understanding of the Process of Canine Intervertebral Disc Degeneration

Rojas,

Jugdaohsingh,

Rayment

et al. 2024

Animals

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Intervertebral disc degeneration in dogs occurs in an accelerated way and involves calcification, which is associated with disc herniation or extrusion. The degenerative process is complex and involves the transformation of collagen fibres, loss of proteoglycans and notochord cells and a reduction in water content; however, how these processes are linked to future disc extrusion remains unknown. We have employed techniques including Fourier Transform Infra-red Spectroscopy (FTIR), Scanning Electron Microscopy (SEM), Transmission Electron Microscopy (TEM), Uniaxial Compression Loading and Atomic Force Microscopy (AFM) in an attempt to gain a greater understanding of the degenerative process and its consequences on the physical properties of the disc. FTIR verified by TEM demonstrated that calcium phosphate exists in an amorphous state within the disc and that the formation of crystalline particles of hydroxyapatite occurs prior to disc extrusion. AFM identified crystalline agglomerates consistent with hydroxyapatite as well as individual collagen fibres. SEM enabled the identification of regions rich in calcium, phosphorous and oxygen and allowed the visualization of the topographical landscape of the disc. Compression testing generated stress/strain curves which will facilitate investigation into disc stiffness. Ongoing work is aimed at identifying potential areas of intervention in the degenerative process as well as further characterizing the role of calcification in disc extrusion.

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Applying the Techniques of Materials Science towards an Understanding of the Process of Canine Intervertebral Disc Degeneration

Rojas,

Jugdaohsingh,

Rayment

et al. 2024

Animals

View full text Add to dashboard Cite

show abstract

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Examination of annulus fibrosus and nucleus pulposus in cervical and lumbar intervertebral disc herniation patients by scanning acoustic microscopy, scanning electron microscopy and energy dispersive spectroscopy

Abstract: Scanning acoustic microscopy, scanning electron microscopy and energy dispersive spectroscopy of annulus fibrous and nucleus pulposus tissues from patients with intervertebral disc herniation were performed, to analyse and determine the acoustic property variations in the tissues.

Cited by 1 publication

References 43 publications

Applying the Techniques of Materials Science towards an Understanding of the Process of Canine Intervertebral Disc Degeneration

Applying the Techniques of Materials Science towards an Understanding of the Process of Canine Intervertebral Disc Degeneration

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