Asymmetrical fracture fixation: stability of oblique fractures is influenced by orientation
| Autor: | Lang Yang, Andrew J. Metcalfe, Michael Saleh |
|---|---|
| Rok vydání: | 2005 |
| Předmět: |
External Fixators
Movement medicine.medical_treatment Biophysics Weight-Bearing Fixation (surgical) External fixation Fracture Fixation Fracture fixation medicine Humans Orthopedics and Sports Medicine Displacement (orthopedic surgery) Orthodontics business.industry Oblique case Structural engineering Compression (physics) Radiography Tibial Fractures Transverse plane Treatment Outcome Fracture (geology) Anisotropy business Geology |
| Zdroj: | Clinical Biomechanics. 20:91-96 |
| ISSN: | 0268-0033 |
| DOI: | 10.1016/j.clinbiomech.2004.09.003 |
| Popis: | Although clear differences in fracture site displacement have previously been demonstrated between transverse and oblique fracture models stabilised by an asymmetrical method, the direction of the obliquity has not been examined biomechanically.Eight Sawbones tibiae were cut to represent oblique fractures: four ran from antero-inferior to postero-superior and four from antero-superior to postero-inferior. These were fixed with a Sheffield Ring Fixator and cyclically loaded in axial and off-axis compression. Direct measurements were taken of inter-fragmentary displacement.Significant differences were detected between the fracture directions (P0.01) and inter-fragmentary displacements were generally reduced in antero-superior to postero-inferior fractures compared with antero-inferio to postero-superior fractures.Fixation asymmetries need to be tailored to specific fracture orientation to improve fracture site mechanics. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect