An Augmented Fixation Method for Distal Fibular Fractures in Elderly Patients: A Biomechanical Evaluation
| Autor: | Brent G. Parks, Warren R. Dunn, Mark E. Easley, Hans-Jörg Trnka, Lew C. Schon |
|---|---|
| Rok vydání: | 2004 |
| Předmět: |
Bone Screws
0206 medical engineering 02 engineering and technology law.invention Intramedullary rod Fractures Bone 03 medical and health sciences Fixation (surgical) 0302 clinical medicine law Cadaver Fracture fixation Bone plate Humans Medicine Orthopedics and Sports Medicine Tibia Fibula Aged Aged 80 and over Orthodontics Universal testing machine business.industry 030229 sport sciences Anatomy 020601 biomedical engineering Biomechanical Phenomena Fracture Fixation Intramedullary Bone Diseases Metabolic Surgery business Bone Plates Bone Wires |
| Zdroj: | Foot & Ankle International. 25:128-131 |
| ISSN: | 1944-7876 1071-1007 |
| Popis: | This biomechanical investigation compared two fixation techniques for distal fibular fractures. Elderly cadaver lower extremities with simulated fibula fractures underwent fixation either with a plate and intramedullary Kirschner wires (K-wires) with or without the addition of three screws inserted through the four cortices of the fibula and the tibia. The specimens were axially loaded to body weight on a materials testing machine, and the supinated foot was externally rotated to failure. Displacement at the fracture site was monitored with an extensometer. Comparing the augmented technique with the technique without additional screws, mean stiffness was 460 +/- 100 and 320 +/- 200 N-mm/deg, strength at failure was 31 +/- 10 and 19 +/- 7 N-m, strength at 30 degrees external rotation was 15 +/- 5 and 10 +/- 6 N-m, and axial deformation was 0.04 +/- 0.06 mm and 0.10 +/- 0.04 mm, respectively. All differences were statistically significant. |
| Databáze: | OpenAIRE |
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