Finite element study of the biomechanical effects on the rotator cuff under load

Zhou, Yang; Xu, Guangming; Yang, Jiyong; Lin, Xiaotong

doi:10.3389/fbioe.2023.1193376

Cited by 3 publications

(2 citation statements)

References 32 publications

(38 reference statements)

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“…[11] With the rapid development of digital medicine, the application of nite element analysis (FEA) in the eld of shoulder joints has become increasingly prevalent. [12] Through computer simulation modeling and analysis under different loading conditions, FEA helps overcome the limitations of traditional biomechanics. Currently, researchers have incorporated nite element analysis into the study of shoulder joints, focusing on areas such as the mechanisms of rotator cuff tears and the surgical treatment of such tears.…”

Section: Discussionmentioning

confidence: 99%

Single-row and double-row shoulder suture techniques, combined with dynamic-static modeling, were employed for finite element analysis of the three-dimensional mechanics of the shoulder joint

Wang,

Yang,

Zhang

2024

Preprint

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Objective: Analyzing the mechanical differences in shoulder cuff repair between single-row and double-row suture techniques from a three-dimensional biomechanical perspective. This study aims to guide the selection of the most suitable surgical approach based on preoperative conditions and recommend appropriate postoperative rehabilitation training. Methods: CT scan data of adult shoulder joints were imported into Mimics software for data extraction, reconstructing the geometric model of the shoulder joint. Subsequent repairs, noise reduction, and surface smoothing were performed using Geomagic Studio 2017. The model was then assembled in SolidWorks 2017, followed by meshing and boundary condition loading in ANSYS 17.0 for various computational analyses. Results: Single-row and double-row suture techniques exhibit different muscle recovery effects at various angles. Considering prevention of re-tearing, muscle adhesion, and varying degrees of rotator cuff injuries, different repair techniques and rehabilitation training angles should be taken into account. Conclusion: Double-row suture technique outperforms the single-row technique, mainly due to its larger contact area, providing effective postoperative assistance to human movement and demonstrating better overall effectiveness. However, depending on the specific injury context outlined in the study, the single-row suture technique may still be considered during surgery.

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Section: Discussionmentioning

confidence: 99%

Single-row and double-row shoulder suture techniques, combined with dynamic-static modeling, were employed for finite element analysis of the three-dimensional mechanics of the shoulder joint

Wang,

Yang,

Zhang

2024

Preprint

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“…The element numbers of the three models were 8,678 (Mesh 1), 15,998 (Mesh 2), and 23,998 (Mesh 3). If increasing the mesh number led to a change of ≤5% in the maximum displacement, the mesh was considered adequately refined [16,17]. The results demonstrated that the difference between Mesh 1 and Mesh 2 was 6.48%; In each model, the sagittal plane is shown on the left and the frontal plane on the right.…”

Section: Mesh Convergence Testmentioning

confidence: 99%

Estimation of the Effects of Achilles Tendon Geometry on the Magnitude and Distribution of Local Strain: A Finite Element Analysis

Enomoto,

Oda

2023

Biomechanics

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We investigated the influence of Achilles tendon (AT) geometry on local-strain magnitude and distribution during loading, using finite element analysis. We calculated the following eight AT parameters for 18 healthy men: thickness and width of the most distal part, minimum cross-sectional area (mCSA), and most proximal part; length; and position of the mCSA. To investigate the effect of AT geometry on the magnitude and distribution of local strain, we created three-dimensional numerical models by changing the AT parameter values for every one standard deviation (SD) in the range of ±2 SD. A 4000 N lengthening force was applied to the proximal surface of all the models. The mean first principal strain (FPS) was determined every 3% of the length. The highest FPS in each model was mainly observed in the proximal regions; the 86–89% site (the most proximal site was set at 100%) had the highest number of models with the highest FPS (nine models). The highest FPS was observed in the model with a distal thickness of −2 SD, which was 27.1% higher than that of the standard model observed in the 2–5% site. Therefore, the AT geometry influences local-strain magnitude and distribution during loading.

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Biomechanical effects of deltoid muscle atrophy on rotator cuff tissue: a finite element study

Wang,

Chen,

et al. 2024

Sci Rep

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The deltoid muscle and rotator cuff tissue are structural components that maintain the dynamic stability of the shoulder joint. However, atrophy of the deltoid muscle may affect the stability of the shoulder joint, which in turn alters the mechanical distribution of rotator cuff tissue. Currently, the effect of muscle volume changes in the deltoid muscle on reducing the load on the rotator cuff tissue is still unknown. Therefore, this paper intends to analyze the mechanical changes of rotator cuff tissue by deltoid muscle atrophy through finite elements. Based on previously published finite element shoulder models, the deltoid muscle was modeled by constructing deltoid muscle models with different degrees of atrophy as, 100% deltoid muscle (Group 1), 80% deltoid muscle (Group 2), and 50% deltoid muscle (Group 3), respectively. The three models were given the same external load to simulate glenohumeral joint abduction, and the stress changes in the rotator cuff tissue were analyzed and recorded. In all three models, the stress in the rotator cuff tissue showed different degrees of increase with the increase of abduction angle, especially in the supraspinatus muscle. At 90° of glenohumeral abduction, supraspinatus stress increased by 58% and 118% in Group 2 and Group 3, respectively, compared with Group 1; In the subscapularis, the stress in Group 3 increased by 59% and 25% compared with Group 1 and Group 2, respectively. In addition, the stress of the infraspinatus muscle and teres minor muscle in Group 2 and Group 3 were higher than that in Group 1 during the abduction angle from 30° to 90°. Deltoid atrophy alters the abduction movement pattern of the glenohumeral joint. During glenohumeral abduction activity, deltoid atrophy significantly increases the stress on the rotator cuff tissue, whereas normal deltoid volume helps maintain the mechanical balance of the rotator cuff tissue.

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Finite element study of the biomechanical effects on the rotator cuff under load

Cited by 3 publications

References 32 publications

Single-row and double-row shoulder suture techniques, combined with dynamic-static modeling, were employed for finite element analysis of the three-dimensional mechanics of the shoulder joint

Single-row and double-row shoulder suture techniques, combined with dynamic-static modeling, were employed for finite element analysis of the three-dimensional mechanics of the shoulder joint

Estimation of the Effects of Achilles Tendon Geometry on the Magnitude and Distribution of Local Strain: A Finite Element Analysis

Biomechanical effects of deltoid muscle atrophy on rotator cuff tissue: a finite element study

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