Vertebral derotation in adolescent idiopathic scoliosis causes hypokyphosis of the thoracic spine
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چکیده
منابع مشابه
Vertebral derotation in adolescent idiopathic scoliosis causes hypokyphosis of the thoracic spine
BACKGROUND The purpose of this study was to test the hypothesis that direct vertebral derotation by pedicle screws (PS) causes hypokyphosis of the thoracic spine in adolescent idiopathic scoliosis (AIS) patients, using computer simulation. METHODS Twenty AIS patients with Lenke type 1 or 2 who underwent posterior correction surgeries using PS were included in this study. Simulated corrections...
متن کاملAssessment of Coronal Radiographic Parameters of the Spine in the Treatment of Adolescent Idiopathic Scoliosis
Background: To determine the most important preoperative factors that affect postoperative coronal parameters of scoliotic curves. Methods: All Adolescent Idiopathic Scoliosis (AIS) patients included in the study were classified according to Lenke and King Classification. The fusion levels were selected according to the rigidity of the existing curves (correction less than 50%), tilt...
متن کاملIs there a better derotation manoeuvre in posterior correction of thoracic adolescent idiopathic scoliosis?
Background Retrospective review of 62 consecutive patients affected by AIS (Lenke type 1 or 2) treated by posterior fusion with pedicle screw-only instrumentation. Three groups identified: Pre-Rod (direct derotation procedure done before inserting rods), Single-Rod (derotation done after concave rod insertion) Double-Rod (after both rods). The Pre-Rods insertion cases showed a significantly bet...
متن کاملSpontaneous derotation of compensatory lumbar curve after thoracic fusion in adolescent idiopathic scoliosis
Introduction: Currently, excellent three-dimensional correction can be achieved with use of segmental pedicle screw fixation in adolescent idiopathic scoliosis (AIS). In the majority of patients with major thoracic curves, selective thoracic fusion (STF) may be considered to maximize motion segment of the unfused lumbar spine. This study aimed to investigate the extent of spontaneous derotation...
متن کاملVertebral derotation can cause hypokyphosis -3D model analysis
INTRODUCTION: Pedicle screw (PS) constructs allow for better curve correction in the coronal plane as well as in the axial plane in patients with adolescent idiopathic scoliosis (AIS)[1, 2]. However, reduction of physiological kyphosis of the thoracic spine has been one of the problems associated with the PS constructs [3]. The hypothesis for the hypokyphogenesis is that the direct vertebral de...
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ژورنال
عنوان ژورنال: BMC Musculoskeletal Disorders
سال: 2012
ISSN: 1471-2474
DOI: 10.1186/1471-2474-13-99