Is there a better derotation manoeuvre in posterior correction of thoracic adolescent idiopathic scoliosis?
نویسندگان
چکیده
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 better final correction of apical vertebral rotation (61.9% vs 55.8% and 50.1%) and a greater final correction of main thoracic curve. Different manoeuvres can be adopted for direct derotation in posterior correction of thoracic adolescent idiopathic scoliosis (AIS). Aim of the study is to evaluate the better manoeuvre in AIS posterior surgery.
منابع مشابه
Axial Plane Lumbar Responses after Anterior Selective Thoracic Fusion for Main Thoracic Adolescent Idiopathic Scoliosis
STUDY DESIGN A retrospective radiographic study. PURPOSE To evaluate the axial plane lumbar responses after anterior selective thoracic fusion (STF) in patients with main thoracic adolescent idiopathic scoliosis (MT-AIS). OVERVIEW OF LITERATURE Anterior scoliosis surgery induces more MT derotation through disc preparation than posterior surgery. METHODS Twenty-eight MT-AIS patients treate...
متن کاملDirect Vertebral Rotation Versus Single Concave Rod Rotation: Low-dose Intraoperative Computed Tomography Evaluation of Spine Derotation in Adolescent Idiopathic Scoliosis Surgery.
STUDY DESIGN A comparative clinical study of two main corrective manoeuvres in scoliosis surgery. OBJECTIVE To compare the effectiveness of two main corrective manoeuvres: single concave rod rotation (SCRR) and direct vertebral rotation (DVR) in regard to apical vertebral rotation (AVR) and rib hump correction in adolescent idiopathic scoliosis (AIS) surgery. SUMMARY OF BACKGROUND DATA It r...
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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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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...
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