2017
DOI: 10.1016/j.clinbiomech.2017.06.003
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Supplementary medial locking plate fixation of Ludloff osteotomy versus sole lag screw fixation: A biomechanical evaluation

Abstract: Background:The Ludloff oblique osteotomy is inherently unstable, which might lead to delayed union and loss of correction. Supplementary fixation to two lag screw fixation has been proposed. The hypothesis is that the osteotomy fixation constructs supplemented by a mini locking plate provide greater resistance to osteotomy gaping and loss of angular correction in response to cyclic loading.

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Cited by 2 publications
(2 citation statements)
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“…However, lag-screws as a stand-alone solution do not seem to improve the specimen’s stiffness significantly. This corresponds to other studies that have dealt with lag-screws, 37 as well as studies dealing with kyphoplasty 32 or cages 33 as stand-alone treatments in vertebral fractures. Furthermore, a decreasing IVS appeared during the testing, which correlates to a progressive collapse of the IVD into the vertebral body and might be the reason for repeatedly reported vertebral nonunion.…”
Section: Discussionsupporting
confidence: 78%
“…However, lag-screws as a stand-alone solution do not seem to improve the specimen’s stiffness significantly. This corresponds to other studies that have dealt with lag-screws, 37 as well as studies dealing with kyphoplasty 32 or cages 33 as stand-alone treatments in vertebral fractures. Furthermore, a decreasing IVS appeared during the testing, which correlates to a progressive collapse of the IVD into the vertebral body and might be the reason for repeatedly reported vertebral nonunion.…”
Section: Discussionsupporting
confidence: 78%
“…[2][3][4][5][6][7][8][9] En cuanto al tratamiento quirúrgico, existe un gran número de constructos de osteosíntesis propuestos para el tratamiento de este tipo de fracturas, de los cuales son aceptados el uso de clavillos cruzados e intramedulares, tornillos de compresión, un tornillo de compresión asociado a una placa de protección y placas bloqueadas de bajo perfil, considerando todos, salvo el caso de los clavillos, como equivalentes. [2][3][4][5][6][7][8][9][10] Se realizó una búsqueda en la literatura considerando como criterios de inclusión el ser artículos que utilizarán pruebas biomecánicas con sometimiento de los constructos a fuerzas simulando la marcha, que utilizaran implantes de osteosíntesis y que fueran realizadas en modelos de primer metatarsiano, sin encontrarse estudios biomecánicos que comparen estos implantes en dicha región del organismo con las cargas específicas a las que está sometido el primer metatarsiano y que permitan definir si alguno es superior a los demás; [11][12][13][14][15][16][17][18][19][20][21][22][23] es por esto que decidimos realizar cargas cíclicas, simulando la marcha humana en metatarsianos con fractura en laboratorio y que fueron fijados con las dos técnicas de osteosíntesis previamente mencionadas para definir la equiparabilidad biomecánica de las mismas.…”
Section: Introductionunclassified