Mechanical Comparison of a Type II External Skeletal Fixator and Locking Compression Plate in a Fracture Gap Model
dc.contributor.author | Muro, Noelle Marie | en |
dc.contributor.committeechair | Gilley, Robert S. | en |
dc.contributor.committeemember | Kemper, Andrew R. | en |
dc.contributor.committeemember | Tempel, Marian Benitez | en |
dc.contributor.committeemember | Barry, Sabrina L. | en |
dc.contributor.department | Veterinary Medicine | en |
dc.date.accessioned | 2018-12-09T07:01:03Z | en |
dc.date.available | 2018-12-09T07:01:03Z | en |
dc.date.issued | 2017-06-16 | en |
dc.description.abstract | The purpose of this study was to compare the stiffness of a Type II external skeletal fixator (ESF) to a 3.5 mm locking compression plate (LCP) in axial compression, mediolateral, and craniocaudal bending in a fracture gap model. The hypothesis was that the Type II ESF would demonstrate comparable stiffness to the LCP. A bone simulant consisting of short fiber reinforced epoxy cylinders and a 40 mm fracture gap was used. The LCP construct consisted of a 12 hole 3.5 mm plate with three 3.5 mm bicortical locking screws per fragment. The Type II ESF construct consisted of 3 proximal full fixation pins (Centerface®) per fragment in the mediolateral plane, and 2 carbon fiber connecting rods. Five constructs of each were tested in non-destructive mediolateral and craniocaudal bending, and axial compression. Stiffness was determined from the slope of the elastic portion of force-displacement curves. A one-way ANOVA and a Tukey-Kramer multiple comparisons test were performed, with significance defined as p < 0.05. In mediolateral bending, the stiffness of the Type II ESF (mean ± standard deviation; 1584.2 N/mm ± 202.8 N/mm) was significantly greater than that of the LCP (110.0 N/mm ± 13.4 N/mm). In axial compression, the stiffness of the Type II ESF (679.1 N/mm ± 20.1 N/mm) was significantly greater than that of the LCP (221.2 N/mm ± 19.1 N/mm). There was no significant difference between the constructs in craniocaudal bending. This information can aid in decision-making for fracture fixation, although ideal stiffness for healing remains unknown. | en |
dc.description.degree | Master of Science | en |
dc.format.medium | ETD | en |
dc.identifier.other | vt_gsexam:10955 | en |
dc.identifier.uri | http://hdl.handle.net/10919/86276 | en |
dc.publisher | Virginia Tech | en |
dc.rights | In Copyright | en |
dc.rights.uri | http://rightsstatements.org/vocab/InC/1.0/ | en |
dc.subject | external skeletal fixation | en |
dc.subject | locking compression plate | en |
dc.subject | biologic osteosynthesis | en |
dc.subject | stiffness | en |
dc.subject | fracture | en |
dc.title | Mechanical Comparison of a Type II External Skeletal Fixator and Locking Compression Plate in a Fracture Gap Model | en |
dc.type | Thesis | en |
thesis.degree.discipline | Biomedical and Veterinary Sciences | en |
thesis.degree.grantor | Virginia Polytechnic Institute and State University | en |
thesis.degree.level | masters | en |
thesis.degree.name | Master of Science | en |
Files
Original bundle
1 - 1 of 1