Biomechanical Analysis of the Efficacy of Locking Plates during Cyclic Loading in Metacarpal Fractures
Purpose. To analyse the biomechanical characteristics of locking plates under cyclic loading compared to a nonlocking plate in a diaphyseal metacarpal fracture. Methods. Oblique diaphyseal shaft fractures in porcine metacarpal bones were created in a biomechanical fracture model. An anatomical reduc...
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| Format: | Article |
| Language: | English |
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Wiley
2014-01-01
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| Series: | The Scientific World Journal |
| Online Access: | http://dx.doi.org/10.1155/2014/648787 |
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| author | Stefanie Doht Rainer H. Meffert Michael J. Raschke Torsten Blunk Sabine Ochman |
| author_facet | Stefanie Doht Rainer H. Meffert Michael J. Raschke Torsten Blunk Sabine Ochman |
| author_sort | Stefanie Doht |
| collection | DOAJ |
| description | Purpose. To analyse the biomechanical characteristics of locking plates under cyclic loading compared to a nonlocking plate in a diaphyseal metacarpal fracture. Methods. Oblique diaphyseal shaft fractures in porcine metacarpal bones were created in a biomechanical fracture model. An anatomical reduction and stabilization with a nonlocking and a comparable locking plate in mono- or bicortical screw fixation followed. Under cyclic loading, the displacement, and in subsequent load-to-failure tests, the maximum load and stiffness were measured. Results. For the monocortical screw fixation of the locking plate, a similar displacement, maximum load, and stiffness could be demonstrated compared to the bicortical screw fixation of the nonlocking plate.
Conclusions. Locking plates in monocortical configuration may function as a useful alternative to the currently common treatment with bicortical fixations. Thereby, irritation of the flexor tendons would be avoided without compromising the stability, thus enabling the necessary early functional rehabilitation. |
| format | Article |
| id | doaj-art-d0cd5a29a6104cbda34885f005d04379 |
| institution | OA Journals |
| issn | 2356-6140 1537-744X |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | The Scientific World Journal |
| spelling | doaj-art-d0cd5a29a6104cbda34885f005d043792025-08-20T02:20:03ZengWileyThe Scientific World Journal2356-61401537-744X2014-01-01201410.1155/2014/648787648787Biomechanical Analysis of the Efficacy of Locking Plates during Cyclic Loading in Metacarpal FracturesStefanie Doht0Rainer H. Meffert1Michael J. Raschke2Torsten Blunk3Sabine Ochman4Department of Trauma, Hand, Plastic and Reconstructive Surgery, University Clinics of Wuerzburg, Oberduerrbacher Straße 6, 97080 Wuerzburg, GermanyDepartment of Trauma, Hand, Plastic and Reconstructive Surgery, University Clinics of Wuerzburg, Oberduerrbacher Straße 6, 97080 Wuerzburg, GermanyDepartment of Trauma, Hand and Reconstructive Surgery, University Clinics of Muenster, Waldeyerstraße 1, 48149 Muenster, GermanyDepartment of Trauma, Hand, Plastic and Reconstructive Surgery, University Clinics of Wuerzburg, Oberduerrbacher Straße 6, 97080 Wuerzburg, GermanyDepartment of Trauma, Hand and Reconstructive Surgery, University Clinics of Muenster, Waldeyerstraße 1, 48149 Muenster, GermanyPurpose. To analyse the biomechanical characteristics of locking plates under cyclic loading compared to a nonlocking plate in a diaphyseal metacarpal fracture. Methods. Oblique diaphyseal shaft fractures in porcine metacarpal bones were created in a biomechanical fracture model. An anatomical reduction and stabilization with a nonlocking and a comparable locking plate in mono- or bicortical screw fixation followed. Under cyclic loading, the displacement, and in subsequent load-to-failure tests, the maximum load and stiffness were measured. Results. For the monocortical screw fixation of the locking plate, a similar displacement, maximum load, and stiffness could be demonstrated compared to the bicortical screw fixation of the nonlocking plate. Conclusions. Locking plates in monocortical configuration may function as a useful alternative to the currently common treatment with bicortical fixations. Thereby, irritation of the flexor tendons would be avoided without compromising the stability, thus enabling the necessary early functional rehabilitation.http://dx.doi.org/10.1155/2014/648787 |
| spellingShingle | Stefanie Doht Rainer H. Meffert Michael J. Raschke Torsten Blunk Sabine Ochman Biomechanical Analysis of the Efficacy of Locking Plates during Cyclic Loading in Metacarpal Fractures The Scientific World Journal |
| title | Biomechanical Analysis of the Efficacy of Locking Plates during Cyclic Loading in Metacarpal Fractures |
| title_full | Biomechanical Analysis of the Efficacy of Locking Plates during Cyclic Loading in Metacarpal Fractures |
| title_fullStr | Biomechanical Analysis of the Efficacy of Locking Plates during Cyclic Loading in Metacarpal Fractures |
| title_full_unstemmed | Biomechanical Analysis of the Efficacy of Locking Plates during Cyclic Loading in Metacarpal Fractures |
| title_short | Biomechanical Analysis of the Efficacy of Locking Plates during Cyclic Loading in Metacarpal Fractures |
| title_sort | biomechanical analysis of the efficacy of locking plates during cyclic loading in metacarpal fractures |
| url | http://dx.doi.org/10.1155/2014/648787 |
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