Table 1 Structure features of the human disc.

From: Interlamellar matrix governs human annulus fibrosus multiaxial behavior

 

AO

PO

AI

PI

Fibers content

\({12}.{5}\%\)

\({12}.{5}\%\)

\(5\%\)

\(5\%\)

Fibers orientation

\({21}^\circ\)

\(45^\circ\)

\(35^\circ\)

\({45}^\circ\)

Water content

\(74\%\)

\(74\%\)

\(80\%\)

\(80\%\)

  1. The fibers content decreases radially while getting closer to the nucleus51,52,53. The fibers orientation increases and tends towards the spinal axial direction while getting closer to the nucleus35. The water content increases radially in the disc while getting closer to the nucleus. A non-significant water content difference exists between the posterior and anterior regions54.
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