Effect of stem modulus in a total hip arthroplasty model
| Autor: | A Binnington, K McKenzie, Victor Fornasier, G. L. Maistrelli, V Sessa, Ian J. Harrington |
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| Rok vydání: | 1991 |
| Předmět: |
Dentistry
Modulus Young's modulus Prosthesis Design Models Biological Bone and Bones symbols.namesake Dogs Osseointegration medicine Animals Orthopedics and Sports Medicine Femur Elastic modulus Osteoblasts business.industry technology industry and agriculture Implant failure musculoskeletal system Elasticity Biomechanical Phenomena Resorption Radiography medicine.anatomical_structure symbols Hip Joint Surgery Cortical bone Collagen Hip Prosthesis Stress Mechanical Implant business |
| Zdroj: | The Journal of Bone and Joint Surgery. British volume. :43-46 |
| ISSN: | 2044-5377 0301-620X |
| DOI: | 10.1302/0301-620x.73b1.1991773 |
| Popis: | The purpose of this study was to determine the biological effects of the elastic modulus of the femoral stem in canine hip arthroplasty. Cementless total hip arthroplasty was performed in 12 dogs, six had a low elastic modulus polyacetal resin stem and six had a high modulus stainless steel stem. The components were otherwise similar. At six and 12 months after operation, radiographic and histomorphometric analysis showed that those with steel implants had more cortical porosity than did the other group (p less than 0.01). We suggest that the elastic modulus of the implant is an important factor in controlling cortical bone resorption. A low modulus femoral prosthesis can significantly decrease bone resorption which might otherwise eventually lead to implant failure. |
| Databáze: | OpenAIRE |
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