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http://dx.doi.org/10.3340/jkns.2015.58.6.534

Usefulness of Simple Rod Rotation to Correct Curve of Adolescent Idiopathic Scoliosis  

Kim, Ji Yong (Department of Neurosurgery, Inha University Hospital)
Song, Kyungchul (Department of Anesthesiology, Inha University Hospital)
Kim, Kyung Hyun (Department of Neurosurgery, Spine and Spinal Cord Institute, Gangnam Severance Spine Hospital, Yonsei University College of Medicine)
Rim, Dae Cheol (Department of Neurosurgery, Anyang TeunTeun Hospital)
Yoon, Seung Hwan (Department of Neurosurgery, Inha University Hospital)
Publication Information
Journal of Korean Neurosurgical Society / v.58, no.6, 2015 , pp. 534-538 More about this Journal
Abstract
Objective : To correct apical vertebral rotation for adolescent idiopathic scoliosis (AIS), direct vertebral derotation (DVD) or simple rod rotation (SRR) might be considered. The aim of the present study is to introduce the surgical experiences of AIS by a Korean neurosurgeon and to evaluate the effectiveness of SRR for apical vertebral rotation. Methods : A total of 9 patients (1 male and 8 females) underwent scoliosis surgery by a neurosurgeon of our hospital. The Lenke classifications of the patients were 1 of 1B, 2 of 1C, 1 of 2A, 1 of 2C, 3 of 5C and 1 of 6C. Surgery was done by manner of simple rod rotation on the concave side and in situ coronal bending. Coronal Cobb's angles, vertebral rotation angles and SRS-22 were measured on a plain standing X-ray and CT before and after surgery. Results : The mean follow up period was 25.7 months (range : 5-52). The mean number of screw positioning level was nine (6-12). The mean age was 16.4 years (range : 13-25) at surgery. The mean Risser grade was $3.7{\pm}0.9$. The apical vertebral rotation measured from the CT scans was $25.8{\pm}8.5^{\circ}$ vs. $9.3{\pm}6.7^{\circ}$ (p<0.001) and the Coronal Cobb's angle was $53.7{\pm}10.4^{\circ}$ vs. $15.4{\pm}6.5^{\circ}$ (p<0.001) preoperatively and postoperative, respectively. The SRS-22 improved from 71.9 preoperatively to 90.3 postoperatively. There were no complications related with the operations. Conclusion : SRR with pedicle screw instrumentation could be corrected successfully by axial rotation without complications. SRR might serve as a good option to correct AIS deformed curves of AIS.
Keywords
Adolescent idiopathic scoliosis; Simple rod rotation; Direct vertebral derotation; Neurosurgery;
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