Standard bicortical screw fixation is not superior to monocortical fixation using mini-locking plates: a biomechanical study in a metacarpal fracture model
نویسندگان
چکیده
Standard bicortical screw fixation is not superior to monocortical fixation using mini-locking plates: a biomechanical study in a metacarpal fracture model Sabine Ochman1, Stefanie Doht2, Juergen Paletta3, Martin Langer1, Michael J. Raschke1, Rainer H. Meffert1 1Trauma, Hand and Reconstructive Surgery, University of Muenster, Muenster, Germany; 2Trauma-, Hand-, Plasticand Reconstructive Surgery, University of Wuerzburg, Wuerzburg, Germany; 3Orthopedic Surgery and Rheumatology, University of Marburg and Giessen, Marburg, Germany [email protected]
منابع مشابه
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 reduction and stabilization with a nonlocking and a comparable locking plate in mono- or bicortical sc...
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In the published literature there are controversial data to the biomechanical stability of monocortical comparing to the bicortical fixation of metacarpal fractures. The aim of this study was to compare the biomechanical stability of monocortical and bicortical locking osteosynthesis in quasi-static and dynamic 4-point bending tests of composite third metacarpal bone (4th Gen third metacarpal, ...
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The use of bicortical screws to fix metacarpal fractures has been suggested to provide no added biomechanical advantage over unicortical screw fixation. However, this was only demonstrated in static loading regimes, which may not be representative of biological conditions. The present study was done to determine whether similar outcomes are obtained when cyclic loading is applied. Transverse mi...
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While there is no major controversy in managing stable fractures of the fingers, a consensus has not yet been reached in treating unstable fractures of the phalanges and metacarpals of the hands.1-3 Both static4 and dynamic splints5-7 have been used for treating selected cases of unstable phalangeal and metacarpal fractures, for which good outcomes are noted. However, for fractures with rotatio...
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BACKGROUND Metacarpal fractures are common, accounting for 40 % of all hand injuries. The use of plates for the fixation of these fractures allows early aggressive hand therapy post-operatively, reducing post-operative stiffness. Traditionally, bicortical fixation is the standard practice, where both dorsal and palmar cortices of the metacarpal are drilled through, with screws engaging both cor...
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