Secondary Curve Behavior in Lenke Type 1C Adolescent Idiopathic Scoliosis After Thoracoscopic Selective Anterior Thoracic Fusion

被引:20
作者
Yong, Mostyn R. N. O.
Izatt, Maree T.
Adam, Clayton J.
Labrom, Robert D.
Askin, Geoffrey N.
机构
[1] Queensland Univ Technol, Paediat Spine Res Grp, Brisbane, Qld 4001, Australia
[2] Mater Hlth Serv Brisbane Ltd, Brisbane, Qld, Australia
关键词
selective thoracoscopic anterior spinal fusion; adolescent idiopathic scoliosis; Lenke classification; compensatory lumbar curve; Cobb angle; decompensation; COTREL-DUBOUSSET INSTRUMENTATION; POSTERIOR SPINAL-FUSION; PULMONARY-FUNCTION; LUMBAR CURVE; CONSECUTIVE SERIES; SURGERY; DECOMPENSATION; DEROTATION; OUTCOMES;
D O I
10.1097/BRS.0b013e3182583421
中图分类号
R74 [神经病学与精神病学];
学科分类号
摘要
Study Design. Analysis of a case series of 24 patients with Lenke 1C adolescent idiopathic scoliosis (AIS) receiving selective thoracoscopic anterior scoliosis correction. Objective. To report the behavior of the compensatory lumbar curve in a group of patients with Lenke IC AIS after thoracoscopic anterior scoliosis correction and to compare the results of this study with previously published data. Summary of Background Data. Several prior studies have reported spontaneous lumbar curve correction for both anterior and posterior selective fusions in patients with Lenke 1C/King-Moe 2; however, to our knowledge no previous studies have reported outcomes of thoracoscopic anterior correction for this curve type. Methods. All patients with AIS with a curve classification of Lenke 1C and a minimum of 24-month follow-up were obtained from a consecutive series of 190 patients with AIS who underwent thoracoscopic anterior instrumented fusion. Cobb angles of the major curve, instrumented levels, compensatory lumbar curve, and T5-T12 kyphosis were recorded, as well as coronal spinal balance, T1 tilt angle, and shoulder balance. All radiographical parameters were measured before surgery and at 2, 6, 12, and 24 months after surgery. Results. Twenty-four female patients with right thoracic curves had a mean thoracic Cobb angle of 53.0 degrees before surgery, decreasing to 24.9 degrees 2 years after surgery. The mean lumbar compensatory Cobb angle was 43.5 degrees before surgery, spontaneously correcting to 25.4 degrees 2 years after surgery, indicating balance between the thoracic and lumbar scoliotic curves. The lumbar correction achieved (41.8%) compares favorably to previous studies. Conclusion. Selective thoracoscopic anterior fusion allows spontaneous lumbar curve correction and achieves coronal balance of main thoracic and compensatory lumbar curves, good cosmesis, and patient satisfaction. Correction and balance are maintained 24 months after surgery.
引用
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页码:1965 / 1974
页数:10
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