Effect of Fracture Gap on Biomechanical Stability of Compression Bone-Plate Fixation System after Bone Fracture Augmentation.
10.12671/jkfs.2010.23.2.220
- Author:
Duk Young JUNG
1
;
Sung Jae LEE
;
Seon Chil KIM
;
Jong Keon OH
Author Information
1. Senior Products Industrial Center, Busan Techno-park, Busan, Korea.
- Publication Type:Original Article
- Keywords:
Bone fracture;
LC-DCP;
Fracture gap and width;
Biomechanical stability
- MeSH:
Fractures, Bone;
Sprains and Strains
- From:Journal of the Korean Fracture Society
2010;23(2):220-226
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
PURPOSE: The goal of this study using the biomechanical test was to evaluate the mechanical stability of the bone-plate fixation system according to changes of the fracture gap sizes and widths. MATERIALS AND METHODS: For mechanical test, four types with different fracture models simulating the clinical situations were constructed depending on the gap size (FGS, mm) and the gap width (FGW, %) at the fracture site: 0 mm/0%, 1 mm/100%, 4 mm/100%, 4 mm/50%. For analyzing the effects of fracture gap on the biomechanical stability of the bone-plate fixation system, 4-point bending test was performed under all same conditions. RESULTS: It was found that the fracture gap sizes of 1 and 4 mm decreased mechanical stiffness by about 50~60% or more. Furthermore, even without fracture gap size, 50% or more fracture gap width considerably decreased mechanical stiffness and suggested the possibility of plate damage through strain results. CONCLUSION: Our findings suggested that at least 50% contact of the fracture faces in a fracture surgery would be maintained to increase the mechanical stability of the bone-plate fixation system.
