Application of segmental spinal instrumentation.

Segmental spinal instrumentation has been applied to three groups other than scoliosis. It has been used: 1) to treat fractures of the thoracic and lumbar spine; 2) to control instability secondary to malignant destruction; 3) as a closed loop to help stabilize lumbar instability secondary to degenerative disease. A case history ot each was presented. Complications in this series of 63 patients Included three Instances of broken wires, one broken rod, one partial loss of reduction due to wire migration and one deep infection two years postoperative. There was no absolute need for postsurgical immobilization.