» Articles » PMID: 35818350

Biomechanical Evaluation of Spinal Column After Percutaneous Cement Discoplasty: A Finite Element Analysis

Overview
Journal Orthop Surg
Specialty Orthopedics
Date 2022 Jul 12
PMID 35818350
Authors
Affiliations
Soon will be listed here.
Abstract

Objective: To compare the biomechanical properties of percutaneous cement discoplasty (PCD) in the spinal column between different implant-endplate friction.

Methods: A validated L3-Scarumfinite element (FE) model was modified for simulation. In the PCD model, the L4/5 level was modified based on model 1 (M1) and model 2 (M2). In M1, the interaction between bone cement and endplate was defined as face-to-face contact with a friction coefficient of 0.3; in M2, the contact was defined as a Tie constraint. 7.5 N m moments of four physiological motions and axial load of 15, 100 and 400 N preload were imposed at the top of L3. The range of motion (ROM) and interface stress analysis of endplates, annulus fibrosus and bone cement of the operated level were calculated for comparisons among the three models.

Results: The ROM of M1 and M2 increased when compared with the intact model during flexion (FL) (17.5% vs 10.0%), extension (EX) (8.8% vs -8.8%), left bending (LB) (19.0% vs -17.2%) and left axial rotation (LR) (34.6% vs -3.8%). The stress of annulus fibrosus in M1 and M2 decreased in FL (-48.4% vs -57.5%), EX (-25.7% vs -14.7%), LB (-47.5% vs -52.4%), LR (-61.4% vs -68.7%) and axis loading of 100 N (-41.5% vs -15.3%), and 400 N (-27.9% vs -27.3%). The stress of upper endplate of M1 and M2 increased in FL (24.6% vs 24.7%), LB (82.2% vs 89.5%), LR (119% vs 62.4%) and axis loading of 100 N (64.6% vs 45.5%), and 400 N (58.2% vs 24.3%), but was similar in EX (2.9% vs 0.3%). The stress of lower endplate of M1 and M2 increased in FL (170.9% vs 175.0%), EX (180.8% vs 207.7%), LB (302.6% vs 274.7%), LR (332.4% vs 132.8%) and axis loading of 100 N (350.7% vs 168.6%), and 400 N (165.2% vs 106.7%).

Conclusion: Percutaneous cement discoplasty procedure could make effect on the mobility or stiffness. The fusion of bone cement and endplate might have more biomechanical advantages, including of the decreasing rate of implant subsidence and dislocation, and the increase spine stability.

Citing Articles

Efficacy of percutaneous cement discoplasty combined with PVP for the treatment of stage III Kümmell disease with an adjacent disc vacuum sign.

Liu L, Li P, Luo L, Zhao C, Zhang H, Liu D Front Surg. 2025; 12:1538964.

PMID: 40040814 PMC: 11876409. DOI: 10.3389/fsurg.2025.1538964.


Biomechanical Characteristics of First Coronal Reverse Vertebrae in Lenke Type V Adolescent Idiopathic Scoliosis: A Study Using Finite Element Analysis.

Shang Z, Hou Z, Chen W, Chang H, Xu J, Zhang D Orthop Surg. 2024; 17(2):563-574.

PMID: 39653682 PMC: 11787968. DOI: 10.1111/os.14294.


Biomechanical consequences of cement discoplasty: An study on thoraco-lumbar human spines.

Techens C, Montanari S, Bereczki F, Eltes P, Lazary A, Cristofolini L Front Bioeng Biotechnol. 2022; 10:1040695.

PMID: 36532589 PMC: 9755512. DOI: 10.3389/fbioe.2022.1040695.


[Biomechanical evaluation of effects of percutaneous cement discoplasty and percutaneous cement interbody fusion on spinal stability].

Li S, Shao P, Xu B, Liu Y, Zhang J, Liu G Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi. 2022; 36(11):1407-1412.

PMID: 36382460 PMC: 9681586. DOI: 10.7507/1002-1892.202206052.


Percutaneous vertebral-disc plasty for thoracolumbar very severe osteoporotic vertebral compression fractures: A randomized controlled study.

Jiang J, Zhang J, Bao G, Chen J, Wu C, Hong H Front Surg. 2022; 9:1010042.

PMID: 36338626 PMC: 9627294. DOI: 10.3389/fsurg.2022.1010042.

References
1.
Kiss L, Varga P, Szoverfi Z, Jakab G, Eltes P, Lazary A . Indirect foraminal decompression and improvement in the lumbar alignment after percutaneous cement discoplasty. Eur Spine J. 2019; 28(6):1441-1447. DOI: 10.1007/s00586-019-05966-7. View

2.
Janssen D, Mann K, Verdonschot N . Finite element simulation of cement-bone interface micromechanics: a comparison to experimental results. J Orthop Res. 2009; 27(10):1312-8. PMC: 2802538. DOI: 10.1002/jor.20882. View

3.
Zhang Z, Fogel G, Liao Z, Sun Y, Liu W . Biomechanical analysis of lumbar interbody fusion cages with various lordotic angles: a finite element study. Comput Methods Biomech Biomed Engin. 2018; 21(3):247-254. DOI: 10.1080/10255842.2018.1442443. View

4.
Tschugg A, Kavakebi P, Hartmann S, Lener S, Wipplinger C, Loscher W . Clinical and radiological effect of medialized cortical bone trajectory for lumbar pedicle screw fixation in patients with degenerative lumbar spondylolisthesis: study protocol for a randomized controlled trial (mPACT). Trials. 2018; 19(1):129. PMC: 5819638. DOI: 10.1186/s13063-018-2504-z. View

5.
Denoziere G, Ku D . Biomechanical comparison between fusion of two vertebrae and implantation of an artificial intervertebral disc. J Biomech. 2006; 39(4):766-75. DOI: 10.1016/j.jbiomech.2004.07.039. View