Investigation of the Influence of Interbody Fusion on Biomechanics of the Cervical Spine Using a Computer Model

Abstract

Anterior cervical fusion alters the physiologic motion of the adjacent intervertebral joints. Using a computer model the changes in motion within the biological structures are investigated in dynamic loading situations. A multibody system of the cranial part of the upper spine (T3 to C1), clavicle, sternum, and cranium includes the exact geometry of the bony structures, the validated description of the material behavior of the passive soft tissue structures, and control elements simulating the active muscle structures.