Evidence map›Paper›PMID 40851096›Full record

ArticleBMC musculoskeletal disorders2025

From single ligament to multi-ligament injury: a finite element study on the contribution of the posterior ligamentous complex to segmental stability and intervertebral disc stress distribution.

Jingbo Ma, Yu Ding, Rigbat Rozi, Jiaheng Han, Qiang Jiang

Abstract read
In one paragraph

Article in BMC musculoskeletal disorders, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

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3 · Its place in the literature

Who cites it

4 citing papers in PubMed.

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4 · The record

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5 · Who and what money

Authors and funding

5 authors.

Jingbo MaOrthopedics of TCM Senior Department, The Sixth Medical Center of People's Liberation Army General Hospital, Beijing, 100048, China.
Yu DingOrthopedics of TCM Senior Department, The Sixth Medical Center of People's Liberation Army General Hospital, Beijing, 100048, China. dingyu@301hospital.com.cn.
Rigbat RoziOrthopedics of TCM Senior Department, The Sixth Medical Center of People's Liberation Army General Hospital, Beijing, 100048, China.
Jiaheng HanOrthopedics of TCM Senior Department, The Sixth Medical Center of People's Liberation Army General Hospital, Beijing, 100048, China.
Qiang JiangOrthopedics of TCM Senior Department, The Sixth Medical Center of People's Liberation Army General Hospital, Beijing, 100048, China.

Funding

National Natural Science Foundation of China 82274637
6 · The paper itself

Abstract

objectiveThe posterior ligamentous complex (PLC) plays a crucial role in maintaining lumbar spine stability. PLC injuries have become a key factor in lumbar instability, with the increase in degenerative spinal conditions and surgical interventions. This study aimed to systematically quantify the impact of single and multi-ligament injuries on spinal stability and analyze their effects on lumbar biomechanical indices and intervertebral disc stress distribution.

methodsFinite element analysis (FEA) and experimental measurements were employed to examine the effects of 12 ligament resection combinations on lumbar range of motion (RoM) and intervertebral disc stress distribution. Detailed statistical analysis, including the Kruskal-Wallis Test, was used to evaluate the significance of observed differences. Functional contributions of individual ligaments and their combinations were analyzed to assess their roles in restricting spinal motion.

resultsThe results indicated that ligament resection combinations significantly impacted lumbar biomechanical indices (P = 0.016), with an effect size (η²) of 0.058, reflecting a moderate impact on segmental stability. The interspinous ligament (ISL) demonstrated the most significant role in restricting excessive spinal motion, followed by the ligamentum flavum (LF), while the supraspinous ligament (SSL) and facet joint capsules (FJC) had limited effects. Combined multi-ligament injuries, particularly ISL and LF resection, markedly increased spinal instability and altered intervertebral disc stress distribution. Despite significant stability loss from multi-ligament injuries, intact ligaments provided functional compensation, mitigating instability.

conclusionThis study revealed the nonlinear cumulative effects of PLC damage on spinal stability, emphasizing the dominant roles of ISL and LF in maintaining biomechanical integrity. The findings provide critical quantitative insights for clinical decision-making, surgical planning, and postoperative rehabilitation strategies, highlighting the importance of preserving intact ligaments to leverage their compensatory capacity in mitigating instability.

Indexed as

Finite Element AnalysisIntervertebral DiscJoint InstabilityLigaments, ArticularLumbar VertebraeBiomechanical PhenomenaFemaleHumansLigamentsMaleRange of Motion, ArticularStress, MechanicalFinite element modelingInter-subject variabilityLumbar spinePosterior ligamentous complexStepwise reduction

Identifiers

PMID40851096
PMCPMC12376726

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.