Author/Authors :
Carneiro Leão de Araújo Lima, Ana Lécia Hand Surgery Program - Hospital das Clínicas de Ribeirão Preto, Ribeirão Preto, SP, Brazil , Eduardo Calderon Irusta, Alex Hand Surgery Program - Hospital das Clínicas de Ribeirão Preto, Ribeirão Preto, SP, Brazil , Martins Portelinha, Alexandre Orthopedics and Traumatology Program - Hospital das Clínicas de Ribeirão Preto, Ribeirão Preto, SP, Brazil , Toffolo, Lauro Hand Surgery Program - Hospital das Clínicas de Ribeirão Preto, Ribeirão Preto, SP, Brazil , Carlos Shimano, Antonio Departamento de Biomecânica - Medicina e Reabilitação do Aparelho Locomotor (DBMRAL), Hospital das Clínicas de Ribeirão Preto, Ribeirão Preto, SP, Brazil , Favaro Cagnolati, Amanda Hand Surgery Program - Hospital das Clínicas de Ribeirão Preto, Ribeirão Preto, SP, Brazil , Mazzer, Nilton Hand Surgery Program - Hospital das Clínicas de Ribeirão Preto, Ribeirão Preto, SP, Brazil , Henrique Barbieri, Claudio Hand Surgery Program - Hospital das Clínicas de Ribeirão Preto, Ribeirão Preto, SP, Brazil
Abstract :
Background: Distal radius fractures are one of the most common orthopedic injuries and appear in various patterns. Volar plate fixation is not always considered the gold standard treatment. Objective: To measure the resistance of a fragment-specific fix-ation assembly model obtained by plate fixation associated with different K-wire sizes. Method: In this original experimental study, novel II, axial compression of bone materials was tested. Results: In both groups, the maximum force supported by the fixation method in our study was ten times greater than the physiolog-ical load to which the wrist was subjected under physiological conditions. Discussion: In this study, we obtained encouraging results when compared to results reported in the literature. Our study showed that our bone fixating system was mechanically adequate for articular fractures of the intermediate column of the radius (Melone classification). The results were similar or superior to the results of pressure resistance and stiffness when data from
the literature was used as reference. Conclusion: The proposed fixation method demonstrated adequate resistance for fixation of the intermediate column of the distal radius. Increasing K wire size caused augmented resistance of the fixation. Level of Evidence II, Prospective comparative study.
