E-ISSN: 2147-5903
TREATMENT OF ADOLESCENT IDIOPATHIC SCOLIOSIS WITH GLOBAL (ROD) DEROTATION MANEUVER USING PEDICLE SCREWS
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Original Article
VOLUME: 29 ISSUE: 1
P: 13-18
January 2018

TREATMENT OF ADOLESCENT IDIOPATHIC SCOLIOSIS WITH GLOBAL (ROD) DEROTATION MANEUVER USING PEDICLE SCREWS

J Turk Spinal Surg 2018;29(1):13-18
Ozcan Kaya 1
Turgut Akgul 2
Okan Ozkunt 3
Fatih Dikici 4
Onder Yazicioglu 2
Unsal Domanic 2
1. Istinye University Bahcesehir Liv Hospital, Department of Orthopaedics and Traumatology, İstanbul, Turkey
2. Istanbul University, Medical Faculty of Istanbul, Department of Orthopaedics and Traumatology, İstanbul, Turkey
3. Medipol University Sefakoy Hospital, Department of Orthopaedics and Traumatology, İstanbul, Turkey
4. Acibadem University Atakent Hospital, Department of Orthopaedics and Traumatology, İstanbul, Turkey
No information available.
No information available
Received Date: 03.09.2017
Accepted Date: 22.11.2017
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ABSTRACT

Introduction:

Adolescent idiopathic scoliosis is a three dimensional deformity. For the treatment of deformity, nature of deformity should be well understood and treatment strategy has to be directed to the coronal, sagittal and axial components of deformity. Global Derotation (GD) maneuver is based on simple rod derotation from concave side aiming to correct the deformity on coronal, sagittal and axial profile. In this report we reviewed AIS surgery results treated by global derotation maneuver with all pedicle screw instrumentation.

Material& Methods:

Between 2003 and 2011, 253 patients had been operated using GD technique.80 of 253 patients was included to our study. The patients routinely evaluated with preoperative-postoperative and last follow up standing ortho-x-rays. Coronal and sagittal profile parameters measured on x-rays with digital software using Cobb method. Rotational component of the deformity was measured according to Nash-Moe method at the apical vertebra.

Results:

80 patients (71 female ; 9 male)had been followed up average 19,8 (7-37) months. Patients age average were 15,1(12-21) at operation date. Coronal cobb angle measure in thoracic curves preoperative were 48,9° decreased to mean 3,2° postoperatively. The mean coronal thoracolumbar curve were 45,8° preoperatively and decreased to mean 2°. Apical vertebra rotation measure regressed to mean 0,68 (0-1). Thoracic kyphosis showed downward tendency from mean 37,8° to mean 27,8°.

Conclusion:

Rod derotation technique enable to correct coronal and axial profile. Coronal Cobb angle improvement seen obviously with correction of axial profile rotation. Sagittal hypokyphotic effect of GD should be kept in mind.