CDH - FIRST REPORT ON A NEW PRIMARY STABL E ANTERIOR SPINE INSTRUMENTATION

CDH-instrumentation was developed by the principles of an improved sta bility in ventral operation procedure and by the possibility of treati ng all anterior spinal diseases. The implantation of anterior plates a nd drawers, the use of rods fixed within the implant in non-parallel d irections thus automatically providing for a locking mechanism against displacements, the prevention of dislocation of the cancellous bone s crews and the DDT-principle were further requirements. The spine can b e corrected according to the threedimensional anatomy by distraction-, compression and rotational forces, a postoperative external support i s unnecessary. After the application of the method in 50 patients (mon o- and multisegmental) the excellent stability could be proved.