Fixation of femoral shaft osteotomy with intramedullary metallic or absorbable rod: An experimental study on growing dogs
| Autor: | Pertti Törmälä, Hannu Miettinen, Pentti Rokkanen, E. Antero Mäkelä |
|---|---|
| Rok vydání: | 1993 |
| Předmět: |
medicine.medical_specialty
Materials science Femoral shaft Polymers medicine.medical_treatment Polyesters Biomedical Engineering Biophysics Bioengineering Osteotomy law.invention Absorption Intramedullary rod Biomaterials Dogs law medicine Animals Femur Lactic Acid Equal size Femoral neck Fixation (histology) Longitudinal growth Surgery Fracture Fixation Intramedullary medicine.anatomical_structure Metals Lactates Polyglycolic Acid Follow-Up Studies |
| Zdroj: | Journal of Biomaterials Science, Polymer Edition. 4:135-143 |
| ISSN: | 1568-5624 0920-5063 |
| Popis: | The purpose of this study was to examine the effects of an intramedullary self-reinforced polyglycolic acid (SR-PGA), self-reinforced poly-L-lactic acid (SR-PLLA) and a metallic rod on growing bone and their applicability in the fixation of a femoral shaft osteotomy in growing dogs. In 5 dogs, 12 weeks of age, a SR-PGA rod and in another 5 dogs a SR-PLLA rod, both 4.7 mm in diameter and 60 mm in length, were introduced into the intramedullary cavity of the right femur to fix a femoral shaft osteotomy. In a third group of 5 dogs the femoral shaft osteotomy was fixed with an intramedullary metallic rod of equal size. The follow-up intervals were 1, 3, 6, 12, 24 and 48 weeks. Solid union of the osteotomy without secondary displacement was seen radiographically 6 weeks after the operation in all dogs. Neither an intramedullary SR-PGA-, SR-PLLA- nor metallic rod caused any significant disturbance to the longitudinal growth of the operated femur. Narrowing of the femoral neck and a slight valgization of the angle between the femoral neck and shaft without any functional disability was seen 48 weeks after the operation. |
| Databáze: | OpenAIRE |
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