دورية أكاديمية
Effect of localized tendon remodeling on supraspinatus tear propagation.
| العنوان: | Effect of localized tendon remodeling on supraspinatus tear propagation. |
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| المؤلفون: | Ferrer GA; Department of Bioengineering, Swanson School of Engineering, University of Pittsburgh, United States., Fortunato RN; Department of Mechanical Engineering and Materials Science, Swanson School of Engineering, University of Pittsburgh, United States., Musahl V; Department of Bioengineering, Swanson School of Engineering, University of Pittsburgh, United States; Department of Orthopaedic Surgery, University of Pittsburgh, United States., Maiti S; Department of Bioengineering, Swanson School of Engineering, University of Pittsburgh, United States; Department of Mechanical Engineering and Materials Science, Swanson School of Engineering, University of Pittsburgh, United States; Department of Chemical and Petroleum Engineering, Swanson School of Engineering, University of Pittsburgh, United States., Debski RE; Department of Bioengineering, Swanson School of Engineering, University of Pittsburgh, United States; Department of Orthopaedic Surgery, University of Pittsburgh, United States. Electronic address: genesis1@pitt.edu. |
| المصدر: | Journal of biomechanics [J Biomech] 2020 Jul 17; Vol. 108, pp. 109903. Date of Electronic Publication: 2020 Jun 21. |
| نوع المنشور: | Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S. |
| اللغة: | English |
| بيانات الدورية: | Publisher: Elsevier Science Country of Publication: United States NLM ID: 0157375 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1873-2380 (Electronic) Linking ISSN: 00219290 NLM ISO Abbreviation: J Biomech Subsets: MEDLINE |
| أسماء مطبوعة: | Original Publication: New York ; Oxford : Elsevier Science |
| مواضيع طبية MeSH: | Rotator Cuff* , Rotator Cuff Injuries*, Humans ; Rupture ; Tendons |
| مستخلص: | Rotator cuff tear propagation is multifactorial and may be due to localized changes in mechanical properties from tendon remodeling based on the inhomogeneous stresses experienced by a tendon with a tear. The objective of this study was to investigate the effect of localized tendon remodeling on tear propagation for simulated supraspinatus tendon tears. A validated computational model of a supraspinatus tendon using subject-specific geometry and material properties with a 1 cm wide anterior tear was used. The medial edge of the supraspinatus tendon was displaced 5 mm to induce tear propagation and cohesive elements were used to model tear propagation. Four remodeling scenarios were investigated: (1) Baseline (no remodeling), (2) Positive remodeling (increased fiber stiffness) and (3) Negative remodeling (decreased fiber stiffness) at tear tips, and (4) Negative remodeling along the medial-lateral tear edge. Output parameters included the amount of tear propagation, critical load to propagate the tear, and maximum principal stress at the tear tips. Positive remodeling at the tear tips resulted in the largest amount of tear propagation (18.4 mm), highest peak maximum principal stress (25.2 MPa), and lowest critical load to propagate the tear (249N). Conversely, negative remodeling at the tear tips resulted in the least amount of tear propagation (16 mm), lowest peak maximum principal stress (17.6 MPa) and highest critical load to propagate the tear (278N). Overall, remodeling at the tear tips has the greatest effect on tear propagation. Therefore, a better method for clinicians to measure tendon stiffness at the tear tips would be helpful to improve outcome of patients. Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. (Copyright © 2020 Elsevier Ltd. All rights reserved.) |
| فهرسة مساهمة: | Keywords: Finite element method; Rotator cuff tear; Supraspinatus tendon; Tear propagation |
| تواريخ الأحداث: | Date Created: 20200709 Date Completed: 20210514 Latest Revision: 20210514 |
| رمز التحديث: | 20221213 |
| DOI: | 10.1016/j.jbiomech.2020.109903 |
| PMID: | 32636012 |
| قاعدة البيانات: | MEDLINE |
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Full Text Finder | تدمد: | 1873-2380 |
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| DOI: | 10.1016/j.jbiomech.2020.109903 |