Publications by authors named "Ricardo B Cotias"

Background: Critical-size bone defects are defined as bone defects where spontaneous regeneration is not expected without treatment. The characteristics of bone defects (etiology, location, size, presence of infection, and soft-tissue conditions) vary greatly and, to be effective, the treatment method should address this variability. The induced-membrane technique, or Masquelet technique, is a method for treating critical-size bone defects of various sizes and anatomic locations.

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Introduction: Distal radius fractures with articular involvement are more likely to require surgical management. Treatment decisions are based on parameters which are obtained from plain radiographs. This study aims to determine the differences between computed tomography and standard radiographs in the preoperative planning of distal radius fractures with articular involvement.

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Introduction: We report a case of an infected bone defect in the tibia in which the treatment was stopped in the first stage of the induced membrane technique. The polymethylmethacrylate (PMMA) spacer, retained in the bone defect, was encapsulated by the bone regeneration.

Case Report: A 37-year-old male patient with a 7-cm infected bone defect in the tibia was submitted to the first stage of the induced membrane technique with debridement and implantation of a PMMA spacer with antibiotics.

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Objective: This study aimed to evaluate the inter- and intra observer reproducibility of the radiographic score of consolidation of the tibia shaft fractures.

Methods: Fifty-one sets of radiographs in anteroposterior (AP) and profile (P) of the tibial shaft treated with intramedullary nail were obtained. The analysis of X-rays was performed in two stages, with a 21-day interval between assessments by a group of nine evaluators.

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Objective: To evaluate the union rate of posttraumatic bone defects treated with the induced membrane technique.

Design: Single-center retrospective case series.

Setting: Level I trauma center.

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