Fig. 1From: Which sagittal evaluation system can effectively predict mechanical complications in the treatment of elderly patients with adult degenerative scoliosis? Roussouly classification or Global Alignment and Proportion (GAP) ScoreROC curve of evaluation systems in predicting a Mechanical complications, b PJK, c PJF, d DJK or DJF, e Implant-related complications and f Implant looseningBack to article page