[Surgical scoliosis therapy using VDS and Harrington instrumentation (ventral derotation spondylodesis)].

The VDS-method in accordance to Zielke and the Harrington-distraction-spondylodesis are proved as methods for correction of scoliosis lasting for decades, which late results are world-wide analysed and published. The both diametrical corrective principles and the fundamental different operative techniques settle their different indications, which doubtless depend on the experience of the surgeon. Both methods complete each other in operative spectrum of the spinal surgeon. A careful study of the bending properties and the general situation is the supposition for adequate differential indication, which details and results are reported.