Combined effect of artificial cervical disc replacement and facet tropism on the index-level facet joints: a finite element study DOI Creative Commons

Jing Li,

Yuxiao Deng,

Junqi Zhang

et al.

BMC Musculoskeletal Disorders, Journal Year: 2024, Volume and Issue: 25(1)

Published: Oct. 23, 2024

Artificial Cervical Disc Replacement (ACDR) is an effective treatment for cervical degenerative disc diseases. However, clinical information regarding the facet joint alterations after ACDR was limited. Facet tropism common in sub-axial spine. Our previous research indicated that could lead to increased pressure on joints. This study aimed assess impact of contact force and capsule stress ACDR. A C2–T1 finite element model constructed from computed tomography (CT) scans a 28-year-old male volunteer. Symmetrical, moderate asymmetrical (7 degrees tropism), severe (14 tropism) models were created at C5/C6 level by altering orientation C5-C6 level. The simulated intact, models. 75-N follower load with 1.0-Nm moments applied top C2 vertebra simulate flexion, extension, lateral bending, axial rotation T1 fixed. range motions (ROMs) under all moments, forces (FCFs) strains tested. In model, right FCFs considerably left rotation, especially bending sided FCF about 5.44 times neutral position, 3.14 symmetrical model. concentrated cephalad part facets. stresses both sides remarkably rotation. models, strain greater each position than symmetric face ACDR, also result abnormal distribution surface capsule. results suggest might be risk factor post-operative degeneration progression may noteworthy when considered as surgical option.

Language: Английский

Tunable Anisotropy in Lattice Structures via Deep Learning-based Optimization DOI

Chaewon Park,

Sangryun Lee

International Journal of Mechanical Sciences, Journal Year: 2025, Volume and Issue: unknown, P. 110121 - 110121

Published: March 1, 2025

Language: Английский

Citations

1
Combined effect of artificial cervical disc replacement and facet tropism on the index-level facet joints: a finite element study DOI Creative Commons

Jing Li,

Yuxiao Deng,

Junqi Zhang

et al.

BMC Musculoskeletal Disorders, Journal Year: 2024, Volume and Issue: 25(1)

Published: Oct. 23, 2024

Artificial Cervical Disc Replacement (ACDR) is an effective treatment for cervical degenerative disc diseases. However, clinical information regarding the facet joint alterations after ACDR was limited. Facet tropism common in sub-axial spine. Our previous research indicated that could lead to increased pressure on joints. This study aimed assess impact of contact force and capsule stress ACDR. A C2–T1 finite element model constructed from computed tomography (CT) scans a 28-year-old male volunteer. Symmetrical, moderate asymmetrical (7 degrees tropism), severe (14 tropism) models were created at C5/C6 level by altering orientation C5-C6 level. The simulated intact, models. 75-N follower load with 1.0-Nm moments applied top C2 vertebra simulate flexion, extension, lateral bending, axial rotation T1 fixed. range motions (ROMs) under all moments, forces (FCFs) strains tested. In model, right FCFs considerably left rotation, especially bending sided FCF about 5.44 times neutral position, 3.14 symmetrical model. concentrated cephalad part facets. stresses both sides remarkably rotation. models, strain greater each position than symmetric face ACDR, also result abnormal distribution surface capsule. results suggest might be risk factor post-operative degeneration progression may noteworthy when considered as surgical option.

Language: Английский

Citations

0