Research on a Novel Rigid Internal Fixation System

The purpose of the present study was to evaluate the efficiency of fixation with a novel (bulge core type system) rigid internal fixation system. Mandibular linear fractures were created artificially in dogs and fixed using a bulge core type system or a miniplate system in vitro. A 3-point load cell...

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Bibliographic Details
Published inJournal of oral and maxillofacial surgery Vol. 68; no. 7; pp. 1608 - 1614
Main Authors Yang, Tao, Liu, Yan-Pu, Zhao, Jin-Long, Situ, Zhen-Qiang
Format Journal Article
LanguageEnglish
Published New York, NY Elsevier Inc 01.07.2010
Elsevier
Subjects
Animals
Biological and medical sciences
Biomechanical Phenomena
Bone Plates
Bone Regeneration
Bone Screws
Dental Stress Analysis
Disease Models, Animal
Dogs
Equipment Design
Fracture Fixation, Internal - instrumentation
Fracture Fixation, Internal - methods
Internal Fixators
Mandibular Fractures - surgery
Medical sciences
Otorhinolaryngology. Stomatology
Stress, Mechanical
Surgery
Internal fixation
Osteosynthesis
Treatment
Stomatology
Surgery
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Summary:The purpose of the present study was to evaluate the efficiency of fixation with a novel (bulge core type system) rigid internal fixation system. Mandibular linear fractures were created artificially in dogs and fixed using a bulge core type system or a miniplate system in vitro. A 3-point load cell was used to contrast the fixation strength of the 2 systems in vitro. Histologic sections were used to analyze the healing of mandibular linear fractures and to contrast the efficiency of fixation of the 2 systems in vivo. Tetracycline-fluorescein staining technology was used to evaluate the bone healing speed in the mandibular fracture lines during bone healing. In vitro, the 3-point load cell showed that the fixation strength of the bulge core type system was greater than that of the miniplate system ( P < .05). In vivo, the histologic sections and tetracycline-fluorescein staining showed that greater and quicker bony healing occurred using the bulge core type system ( P < .05) and that the efficiency of fixation of the 2 systems was similar. Our results have shown that the bulge core type system can provide sufficient strength for mandibular linear fracture healing.
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ISSN:0278-2391
1531-5053
1531-5053
DOI:10.1016/j.joms.2009.11.003