Biomechanical analysis of the Universal 2 implant in total wrist arthroplasty: a finite element study
| Autor: | Euan Foster, M. Bransby-Zachary, David Nash, Magnus K. Gislason |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
musculoskeletal diseases
medicine.medical_specialty medicine.medical_treatment Arthrodesis Joint Prosthesis 0206 medical engineering Bone Screws Finite Element Analysis Biomedical Engineering Bioengineering 02 engineering and technology Wrist Prosthesis Design Prosthesis Finite element study 03 medical and health sciences 0302 clinical medicine Total wrist arthroplasty Materials Testing medicine Humans Arthroplasty Replacement Orthodontics 030222 orthopedics Ligaments business.industry Ulna General Medicine 020601 biomedical engineering Arthroplasty Computer Science Applications Surgery Biomechanical Phenomena body regions Human-Computer Interaction medicine.anatomical_structure Polyethylene Implant Stress Mechanical business |
| Zdroj: | Computer methods in biomechanics and biomedical engineering. 20(10) |
| ISSN: | 1476-8259 |
| Popis: | Little is known about the mechanics of in vivo loading on total wrist prostheses where many studies have looked at the mechanics of other types of arthroplasty such as for the hip and the knee which has contributed to the overall success of these types of procedures. Currently surgeons would prefer to carry out arthrodesis on the wrist rather than consider arthroplasty as clinical data have shown that the outcome of total wrist arthroplasty is poorer than compared to the hip and knee. More research is needed on the loading mechanisms of the implants in order to enhance the design of future generation implants. This study looks at the load transfer characteristics of the Universal 2 implant using a finite element model of a virtually implanted prosthesis during gripping. The results showed that the loading on the implant is higher on the dorsal and ulnar aspect than on the volar and radial aspect of the implant. The whole load is transmitted through the radius and none through the ulna. |
| Databáze: | OpenAIRE |
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