[CD-instrumentation in the treatment of spinal deformities].

The development of CD-instrumentation aimed at corset-free postoperative patient management. Special attention was paid to a three-dimensional correction of spine deformities. Basic principles and implants are presented. After the description of the technique of implant fixation the surgical technique is presented with regard to the treatment of flexible thoracic lordo-scoliosis, rigid thoracic and thoraco-lumbar scoliosis. Finally, the basic principles in the treatment of kyphoses are discussed. The case material includes 150 patients who underwent surgery between 1983 and 1986.