Does Sacral Slanting Affect Distal Adding-on in Lenke Type 1A Adolescent Idiopathic Scoliosis?

Spine
Yoon Suk JooChoon Sung Lee

Abstract

A retrospective clinical study. The purpose of this study was to identify risk factors for postoperative distal adding-on in Lenke 1A adolescent idiopathic scoliosis. Distal adding-on is a postoperative complication associated with the Lenke type 1A curve. Although various factors are known to cause postoperative adding-on, no study has reported a correlation between sacral slanting and adding-on. A total of 126 consecutive patients who underwent posterior correction and fusion surgery for Lenke type 1A adolescent idiopathic scoliosis were included in this study. Curve type was further categorized into L4-left (L4-L) or L4-right (L4-R), based on the direction of the L4 vertebral tilt. Several clinical and radiological parameters including sacral slanting were investigated to identify risk factors associated with postoperative distal adding-on. A total of 36 patients (28.6%) exhibited sacral slanting. Nineteen out of 20 L4-L type patients had left-sided sacral slanting, whereas 12 out of 16 L4-R type patients had right-sided sacral slanting. The group with adding-on (n = 13) demonstrated a significantly lower age than the group without adding-on (n = 113). Preoperative lumbar Cobb angle (P = 0.022) was determined to be an indepe...Continue Reading

References

Feb 8, 2007·Journal of Spinal Disorders & Techniques·Choon-Sung LeeDong-Ho Lee
Apr 29, 2009·European Spine Journal : Official Publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society·P ParisiniG Bakaloudis
Oct 30, 2012·Spine·Morio MatsumotoTsutomu Akazawa
Jan 24, 2015·The Spine Journal : Official Journal of the North American Spine Society·Choon Sung LeeJae Hwan Cho
Jul 26, 2015·The Spine Journal : Official Journal of the North American Spine Society·Cengiz ErdemirAhmet Yılmaz Şarlak

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