Cause analysis of the liner dissociation of a customized reverse shoulder prosthesis based on finite element analysis
Background: Dissociation of the polyethylene liner after reverse shoulder arthroplasty could cause shoulder dislocation that could not achieve closed reduction. The cause of liner dissociation is currently unclear.Method: Non-homogeneous model of the bone was constructed and dynamic finite element a...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2022-12-01
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| Series: | Frontiers in Bioengineering and Biotechnology |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fbioe.2022.1038116/full |
| _version_ | 1811213999683928064 |
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| author | Qian Wan Aobo Zhang Haotian Bai Yang Liu Hao Chen Xin Zhao Xiaonan Wang Qing Han Jincheng Wang |
| author_facet | Qian Wan Aobo Zhang Haotian Bai Yang Liu Hao Chen Xin Zhao Xiaonan Wang Qing Han Jincheng Wang |
| author_sort | Qian Wan |
| collection | DOAJ |
| description | Background: Dissociation of the polyethylene liner after reverse shoulder arthroplasty could cause shoulder dislocation that could not achieve closed reduction. The cause of liner dissociation is currently unclear.Method: Non-homogeneous model of the bone was constructed and dynamic finite element analysis was utilized to simulate the impingement of the polyethylene liner and scapula during humeral adduction. The stress distribution of the fixation claws, their degree of deformation (DOD), and the stress of the impingement sites in three initial humeral postures (neutral, 30° flexion, and 30° extension) were measured and analyzed. The influence of the liner material stiffness was also investigated.Result: The impingement stress on the liner and scapula was 100–200 MPa, and different humeral postures caused different locations of impingement points. The fixation claws’ maximum principal stress (MPS) results were below 5 MPa. In the connection area between some fixation claws and the liner, compressive stresses on the inside and tensile stresses on the outside were observed, which showed that the fixation claws were prone to deform toward the center direction. The maximum DOD results of three initial humeral postures (neutral, 30° flexion, and 30° extension) were 3.6%, 2.8%, and 3.5%, respectively. The maximum DOD results of neutral initial humeral posture were 0.51% and 11.4% when the elastic modulus of the liner was increased and decreased by a factor of 10, respectively.Conclusion: The humeral adduction impingement could lead to the deformation of the claw-shaped liner fixation structure, which might be one of the reasons for the liner dissociation. The increased stiffness of the liner material helped to reduce the deformation of the fixation structure. |
| first_indexed | 2024-04-12T05:57:09Z |
| format | Article |
| id | doaj.art-58d067d21e0049f4ad6d4047d9818df5 |
| institution | Directory Open Access Journal |
| issn | 2296-4185 |
| language | English |
| last_indexed | 2024-04-12T05:57:09Z |
| publishDate | 2022-12-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Bioengineering and Biotechnology |
| spelling | doaj.art-58d067d21e0049f4ad6d4047d9818df52022-12-22T03:45:08ZengFrontiers Media S.A.Frontiers in Bioengineering and Biotechnology2296-41852022-12-011010.3389/fbioe.2022.10381161038116Cause analysis of the liner dissociation of a customized reverse shoulder prosthesis based on finite element analysisQian WanAobo ZhangHaotian BaiYang LiuHao ChenXin ZhaoXiaonan WangQing HanJincheng WangBackground: Dissociation of the polyethylene liner after reverse shoulder arthroplasty could cause shoulder dislocation that could not achieve closed reduction. The cause of liner dissociation is currently unclear.Method: Non-homogeneous model of the bone was constructed and dynamic finite element analysis was utilized to simulate the impingement of the polyethylene liner and scapula during humeral adduction. The stress distribution of the fixation claws, their degree of deformation (DOD), and the stress of the impingement sites in three initial humeral postures (neutral, 30° flexion, and 30° extension) were measured and analyzed. The influence of the liner material stiffness was also investigated.Result: The impingement stress on the liner and scapula was 100–200 MPa, and different humeral postures caused different locations of impingement points. The fixation claws’ maximum principal stress (MPS) results were below 5 MPa. In the connection area between some fixation claws and the liner, compressive stresses on the inside and tensile stresses on the outside were observed, which showed that the fixation claws were prone to deform toward the center direction. The maximum DOD results of three initial humeral postures (neutral, 30° flexion, and 30° extension) were 3.6%, 2.8%, and 3.5%, respectively. The maximum DOD results of neutral initial humeral posture were 0.51% and 11.4% when the elastic modulus of the liner was increased and decreased by a factor of 10, respectively.Conclusion: The humeral adduction impingement could lead to the deformation of the claw-shaped liner fixation structure, which might be one of the reasons for the liner dissociation. The increased stiffness of the liner material helped to reduce the deformation of the fixation structure.https://www.frontiersin.org/articles/10.3389/fbioe.2022.1038116/fullreverse total shoulder arthroplastyfinite element analysispolyethylene liner dissociationshoulder dislocationfixationimpingement |
| spellingShingle | Qian Wan Aobo Zhang Haotian Bai Yang Liu Hao Chen Xin Zhao Xiaonan Wang Qing Han Jincheng Wang Cause analysis of the liner dissociation of a customized reverse shoulder prosthesis based on finite element analysis Frontiers in Bioengineering and Biotechnology reverse total shoulder arthroplasty finite element analysis polyethylene liner dissociation shoulder dislocation fixation impingement |
| title | Cause analysis of the liner dissociation of a customized reverse shoulder prosthesis based on finite element analysis |
| title_full | Cause analysis of the liner dissociation of a customized reverse shoulder prosthesis based on finite element analysis |
| title_fullStr | Cause analysis of the liner dissociation of a customized reverse shoulder prosthesis based on finite element analysis |
| title_full_unstemmed | Cause analysis of the liner dissociation of a customized reverse shoulder prosthesis based on finite element analysis |
| title_short | Cause analysis of the liner dissociation of a customized reverse shoulder prosthesis based on finite element analysis |
| title_sort | cause analysis of the liner dissociation of a customized reverse shoulder prosthesis based on finite element analysis |
| topic | reverse total shoulder arthroplasty finite element analysis polyethylene liner dissociation shoulder dislocation fixation impingement |
| url | https://www.frontiersin.org/articles/10.3389/fbioe.2022.1038116/full |
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