Torsional Properties between C4~5,T 1 1 ~1 2,L5 ~S 1 Intervertebral Disc and the Adjacent Vertebral Body
LUO Qinghua
ZHOU Chengliang
BAI Yuhe
REN Yuan
ZHANG Shuquan
Abstract：To conduct experiments on normal people to reverse the fresh corpse C4~5,T11 ~12,L5 ~S1 intervertebral disc and vertebral body,and then C4~5,T11 ~12,L5 ~S1 intervertebral disc and the adjacent vertebral bodies were analyzed to reverse the mechanical properties.Finally,we had a different twist to determine whether the disc in different parts and the adjacent vertebral bodies had different torsional properties.13 samples of C4~5,T11 ~12,L5 ~S1 intervertebral discs and its adjacent vertebral bodies were taken respectively and were conducted experiments in torsion test machine.The experimental rate was 5 °/min,the experimental data were processed by statistical analysis and test.The results showed that the maximum torque of the C4 ~5 group was 979.6 ± 148.94 Ncm,the maximum torsion angle was 12.8 ±1.97°,the maximum shear stress was 4.24 ±0.71 Mpa,the maximum torque of T11~12 group was 2525.3 ±358.8 Ncm,the maximum torsional angle was 10.971.28°,the maximum shear stress was 5.86 ±0.83 MPa.
<br> The torsional praperties of C4~5,T11 ~12,L5 ~S1 have some differences.
Keywords：Human spineC4-5T1 1 -12L5 -S1TorsionMechanical properties
Publication Date：2015-01-01
Online Publishing Date：2026-09-11(First online date of this platform, not the publication date of the document)
Pages：4( 30-32,36 )