ABSTRACT Objective: To conduct a comparative study of the results obtained in the treatment of adolescent idiopathic scoliosis (AIS) with different types of fixations (traditional, selective and multiple), and to evaluate the correction of angular deformity in the frontal plane by the Cobb and sacral clavicular angle (SCA) methods. Methods: A study of a group of 278 patients with AIS who underwent selective, tr...
ABSTRACT Objective: To create a new instrumentation principle for the treatment of adolescent idiopathic scoliosis (AIS) and similar conditions. Methods: A new fixation format was created for the treatment of AIS using 3rd generation instrumentation in short, apical and single or multiple fixations. In patients presenting one scoliotic curve, one fixation is performed. In patients with two curves, two fixations...
ABSTRACT Objective: To create a method to measure the overall coronal plane of the spine, called the sacral clavicular angle (SCA). Methods: A line is drawn at the base of the sacrum; a second central line is drawn perpendicular to the first one in the proximal extension of the spine. A third line is drawn passing through the intersections of the superior points of the clavicles with the two second ribs, formin...
ABSTRACT Objective: To create a new comprehensive, three-dimensional, applicable classification for Adolescent Idiopathic Scoliosis and similar conditions. Methods: The Three-Dimensional Classification was created with three components: the first, the quantitative factor, divides into three types according to the number of curves; the second, the locator factor defines the most structured point of the curve; an...
ABSTRACT Objective: The objective was to investigate implant density or the number of screws correlated with the correction of the main curve in patients undergoing surgery for adolescent idiopathic scoliosis (AIS). Methods: We evaluated 112 medical records: 33 patients with screw density of up to 50%, and 79 patients with a density of 100%; all patients underwent surgical correction by posterior approach with ...
ABSTRACT Objective: To define and quantify the degree of change of the spinal canal diameter in patients with degenerative and spondylolytic spondylolisthesis. Methods: We studied CT scans of 54 patients. Of this total, 37 (29 women and 8 men) had degenerative type and 17 (7 women and 10 men) had spondylolytic type. Results: In the degenerative spondylolisthesis group, the average diameter of the spinal canal a...
OBJECTIVE: To evaluate the postoperative loss of scoliosis correction using third-generation instrumental, comparing the immediately postoperative period, and the last visit of the patients operated on from 2002 to 2010. METHOD: This was a cross-sectional study, conducted by analysis of medical records, in which 45 patients undergoing scoliosis correction were included. Variables were evaluated preoperatively, ...
OBJETIVOS: avaliar o grau de correção da cifose de Scheuermann, em 6 pacientes que se submeteram à instrumentação híbrida composta por ganchos e parafusos (H) e 17 fixados apenas com parafusos (P). MÉTODOS: 23 pacientes, com cifose de Scheuermann, submetidos a tratamento cirúrgico por dupla via com início pela via anterior, seguido pela via posterior. Do conjunto de pacientes, 6 foram operados com fixação híbri...