Comparative finite element analysis: internal fixation plate versus intramedullary nail for neer type III-VI proximal humeral fractur
Abstract Background Finite element analysis (FEA) could advance the understanding of fracture fixation and guide the choice of surgical treatment. This study aimed to compare two internal fixation methods in the treatment of displaced proximal humeral fracture (PHF) through FEA. Methods Three-dimens...
Saved in:
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
BMC
2025-01-01
|
| Series: | Journal of Orthopaedic Surgery and Research |
| Subjects: | |
| Online Access: | https://doi.org/10.1186/s13018-024-05418-z |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1841559225049808896 |
|---|---|
| author | Yan Shi Junlin Zhou |
| author_facet | Yan Shi Junlin Zhou |
| author_sort | Yan Shi |
| collection | DOAJ |
| description | Abstract Background Finite element analysis (FEA) could advance the understanding of fracture fixation and guide the choice of surgical treatment. This study aimed to compare two internal fixation methods in the treatment of displaced proximal humeral fracture (PHF) through FEA. Methods Three-dimensional FEA model based on the left shoulder joint of a 67-year-old female patient with PHFs and osteoporosis was adopted, in order to analyze the fixation effect and load stress distribution of internal fixation plates with open reduction and intramedullary nails without opening the fracture in the treatment of Neer III-VI PHF. Results The displacement of the distal humerus with intramedullary nail fixation was more obvious than that of the distal humerus with bone plate fixation, and the resistance of intramedullary nail fixation was less than that of bone plate fixation under the same stress load. Maximum stress on the screw when adopting the intramedullary nail fixation was smaller than that when adopting the internal fixation with the internal fixation plates. The strain data indicate that the strain of both the fixation device and the bone when adopting the internal fixation with the intramedullary nails is less than that when adopting the internal fixation with the internal fixation plates. Conclusions Biomechanical analysis demonstrated that for complex fracture types with osteoporosis intramedullary nail system without opening the fracture had better stress dispersion than internal fixation plates with open reduction, and the risk of failure of central fixation was lower. |
| format | Article |
| id | doaj-art-86626179faf542aca2aaf0b6d8eddcf2 |
| institution | Kabale University |
| issn | 1749-799X |
| language | English |
| publishDate | 2025-01-01 |
| publisher | BMC |
| record_format | Article |
| series | Journal of Orthopaedic Surgery and Research |
| spelling | doaj-art-86626179faf542aca2aaf0b6d8eddcf22025-01-05T12:41:24ZengBMCJournal of Orthopaedic Surgery and Research1749-799X2025-01-0120111310.1186/s13018-024-05418-zComparative finite element analysis: internal fixation plate versus intramedullary nail for neer type III-VI proximal humeral fracturYan Shi0Junlin Zhou1Department of Orthopedics, Beijing Chaoyang Hospital, Capital Medical UniversityDepartment of Orthopedics, Beijing Chaoyang Hospital, Capital Medical UniversityAbstract Background Finite element analysis (FEA) could advance the understanding of fracture fixation and guide the choice of surgical treatment. This study aimed to compare two internal fixation methods in the treatment of displaced proximal humeral fracture (PHF) through FEA. Methods Three-dimensional FEA model based on the left shoulder joint of a 67-year-old female patient with PHFs and osteoporosis was adopted, in order to analyze the fixation effect and load stress distribution of internal fixation plates with open reduction and intramedullary nails without opening the fracture in the treatment of Neer III-VI PHF. Results The displacement of the distal humerus with intramedullary nail fixation was more obvious than that of the distal humerus with bone plate fixation, and the resistance of intramedullary nail fixation was less than that of bone plate fixation under the same stress load. Maximum stress on the screw when adopting the intramedullary nail fixation was smaller than that when adopting the internal fixation with the internal fixation plates. The strain data indicate that the strain of both the fixation device and the bone when adopting the internal fixation with the intramedullary nails is less than that when adopting the internal fixation with the internal fixation plates. Conclusions Biomechanical analysis demonstrated that for complex fracture types with osteoporosis intramedullary nail system without opening the fracture had better stress dispersion than internal fixation plates with open reduction, and the risk of failure of central fixation was lower.https://doi.org/10.1186/s13018-024-05418-zFinite element analysisShoulder fracturesInternal fracture fixationBone screwsBone plate |
| spellingShingle | Yan Shi Junlin Zhou Comparative finite element analysis: internal fixation plate versus intramedullary nail for neer type III-VI proximal humeral fractur Journal of Orthopaedic Surgery and Research Finite element analysis Shoulder fractures Internal fracture fixation Bone screws Bone plate |
| title | Comparative finite element analysis: internal fixation plate versus intramedullary nail for neer type III-VI proximal humeral fractur |
| title_full | Comparative finite element analysis: internal fixation plate versus intramedullary nail for neer type III-VI proximal humeral fractur |
| title_fullStr | Comparative finite element analysis: internal fixation plate versus intramedullary nail for neer type III-VI proximal humeral fractur |
| title_full_unstemmed | Comparative finite element analysis: internal fixation plate versus intramedullary nail for neer type III-VI proximal humeral fractur |
| title_short | Comparative finite element analysis: internal fixation plate versus intramedullary nail for neer type III-VI proximal humeral fractur |
| title_sort | comparative finite element analysis internal fixation plate versus intramedullary nail for neer type iii vi proximal humeral fractur |
| topic | Finite element analysis Shoulder fractures Internal fracture fixation Bone screws Bone plate |
| url | https://doi.org/10.1186/s13018-024-05418-z |
| work_keys_str_mv | AT yanshi comparativefiniteelementanalysisinternalfixationplateversusintramedullarynailforneertypeiiiviproximalhumeralfractur AT junlinzhou comparativefiniteelementanalysisinternalfixationplateversusintramedullarynailforneertypeiiiviproximalhumeralfractur |