Biomechanical Behavior of Dynamic vs. Static Distal Locking Intramedullary Nails in Subtrochanteric Femur Fractures
Objective: Hip fractures are one of the most frequent fractures presenting to the emergency department and orthopedic trauma teams. The aim of this study was to determine the best indication and therapeutic technique for subtrochanteric fractures and unifying criteria when choosing the most suitable...
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| Format: | Article |
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MDPI AG
2023-10-01
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| Series: | Bioengineering |
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| Online Access: | https://www.mdpi.com/2306-5354/10/10/1179 |
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| author | Carmen Martínez-Aznar Jesús Mateo Elena Ibarz Luis Gracia Jorge Rosell Sergio Puértolas |
| author_facet | Carmen Martínez-Aznar Jesús Mateo Elena Ibarz Luis Gracia Jorge Rosell Sergio Puértolas |
| author_sort | Carmen Martínez-Aznar |
| collection | DOAJ |
| description | Objective: Hip fractures are one of the most frequent fractures presenting to the emergency department and orthopedic trauma teams. The aim of this study was to determine the best indication and therapeutic technique for subtrochanteric fractures and unifying criteria when choosing the most suitable type of nail. Materials and methods: To analyze the influence of the material and the type of distal locking of intramedullary nails (static or dynamic), a femur model with a fracture in the subtrochanteric region stabilized with a long Gamma intramedullary nail was applied using finite element method (FEM) simulation. Results: The mechanical study shows that titanium nails allow for greater micromobility at the fracture site, which could act as a stimulus for the formation of callus and consolidation of the fracture. In the mechanical study, the type of distal locking mainly affects mobility at the fracture site and stress in the cortical bone around the distal screws, without in any case exceeding values that may compromise the viability of the assembly or that may result in detrimental effects (in terms of mobility at the fracture site) for the consolidation process. Conclusion: Subtrochanteric fractures treated with titanium nail and static distal locking is safe and does not hinder consolidation. |
| first_indexed | 2024-03-10T21:25:33Z |
| format | Article |
| id | doaj.art-80525839c583405d905e9b123590da58 |
| institution | Directory Open Access Journal |
| issn | 2306-5354 |
| language | English |
| last_indexed | 2024-03-10T21:25:33Z |
| publishDate | 2023-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Bioengineering |
| spelling | doaj.art-80525839c583405d905e9b123590da582023-11-19T15:42:07ZengMDPI AGBioengineering2306-53542023-10-011010117910.3390/bioengineering10101179Biomechanical Behavior of Dynamic vs. Static Distal Locking Intramedullary Nails in Subtrochanteric Femur FracturesCarmen Martínez-Aznar0Jesús Mateo1Elena Ibarz2Luis Gracia3Jorge Rosell4Sergio Puértolas5Department of Orthopaedic Surgery and Traumatology, Reina Sofía Hospital, 31500 Tudela, SpainDepartment of Orthopaedic Surgery and Traumatology, Miguel Servet University Hospital, 50009 Zaragoza, SpainDepartment of Mechanical Engineering, University of Zaragoza, 50018 Zaragoza, SpainDepartment of Mechanical Engineering, University of Zaragoza, 50018 Zaragoza, SpainDepartment of Mechanical Engineering, University of Zaragoza, 50018 Zaragoza, SpainDepartment of Mechanical Engineering, University of Zaragoza, 50018 Zaragoza, SpainObjective: Hip fractures are one of the most frequent fractures presenting to the emergency department and orthopedic trauma teams. The aim of this study was to determine the best indication and therapeutic technique for subtrochanteric fractures and unifying criteria when choosing the most suitable type of nail. Materials and methods: To analyze the influence of the material and the type of distal locking of intramedullary nails (static or dynamic), a femur model with a fracture in the subtrochanteric region stabilized with a long Gamma intramedullary nail was applied using finite element method (FEM) simulation. Results: The mechanical study shows that titanium nails allow for greater micromobility at the fracture site, which could act as a stimulus for the formation of callus and consolidation of the fracture. In the mechanical study, the type of distal locking mainly affects mobility at the fracture site and stress in the cortical bone around the distal screws, without in any case exceeding values that may compromise the viability of the assembly or that may result in detrimental effects (in terms of mobility at the fracture site) for the consolidation process. Conclusion: Subtrochanteric fractures treated with titanium nail and static distal locking is safe and does not hinder consolidation.https://www.mdpi.com/2306-5354/10/10/1179intramedullary nailsubtrochanteric fractureosteosynthesisfinite element analysisbiomechanics |
| spellingShingle | Carmen Martínez-Aznar Jesús Mateo Elena Ibarz Luis Gracia Jorge Rosell Sergio Puértolas Biomechanical Behavior of Dynamic vs. Static Distal Locking Intramedullary Nails in Subtrochanteric Femur Fractures Bioengineering intramedullary nail subtrochanteric fracture osteosynthesis finite element analysis biomechanics |
| title | Biomechanical Behavior of Dynamic vs. Static Distal Locking Intramedullary Nails in Subtrochanteric Femur Fractures |
| title_full | Biomechanical Behavior of Dynamic vs. Static Distal Locking Intramedullary Nails in Subtrochanteric Femur Fractures |
| title_fullStr | Biomechanical Behavior of Dynamic vs. Static Distal Locking Intramedullary Nails in Subtrochanteric Femur Fractures |
| title_full_unstemmed | Biomechanical Behavior of Dynamic vs. Static Distal Locking Intramedullary Nails in Subtrochanteric Femur Fractures |
| title_short | Biomechanical Behavior of Dynamic vs. Static Distal Locking Intramedullary Nails in Subtrochanteric Femur Fractures |
| title_sort | biomechanical behavior of dynamic vs static distal locking intramedullary nails in subtrochanteric femur fractures |
| topic | intramedullary nail subtrochanteric fracture osteosynthesis finite element analysis biomechanics |
| url | https://www.mdpi.com/2306-5354/10/10/1179 |
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