• B Wiedenhöfer, C H Fürstenberg, K Schröder, and M Akbar.
• Department für Orthopädie, Unfallchirurgie und Paraplegiologie, Sektion Wirbelsäulenchirurgie, Klinikum der Ruprecht-Karls-Universität Heidelberg, Schlierbacher Landstr. 200a, 69118, Heidelberg, Deutschland. bernd.wiedenhoefer@med.uni-heidelberg.de
• Orthopade. 2011 Aug 1;40(8):672-81.

BackgroundThere is presently still no consensus on how to operatively treat adolescent idiopathic scoliosis (AIS), i.e. a clearly reduced thoracic kyphosis. For a long time the primary focus was mostly on correcting the coronal plane while neglecting the sagittal profile. Based on the current literature and own retrospective data a comprehensive review will be given on the optimal correction of the spine and how to avoid secondary complications. Different operative standard procedures are demonstrated with special attention to the sagittal balance and the special parameters sagittal vertical axis (SVA), lumbar lordosis (LL), thoracic kyphosis (TK), pelvic tilt (PT), sagittal slope (SSL) and pelvic incidence (PI).ResultsA total of 24 patients (2 groups of 12 patients) with AIS and posterior fusion with (group A) and without (group B) additional osteotomy were analyzed with respect to the impact on spinopelvic balance and health-related quality of life (HRQoL) parameters. Patients in group A had a significant reduction of TK, LL and SSL and an increase in PT whereas patients in group B showed the opposite. Correlation analysis revealed a significant dependence of HRQoL on PT.DiscussionBoth the results from the literature and own data confirm that operative correction of AIS needs a careful planning including sagittal spinopelvic parameters. Rigid thoracic hypokyphosis require additional osteotomy.

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