Spine update lumbar interbody cages

Study Design. Interbody cage devices used to assist interbody fusion are rapidly gaining popularity in the surgical management of chronic low back pain. This update provides a structural classification of commonly used devices and assesses them against a set of clearly defined surgical goals, including ability to correct the existing mechanical deformation ability to provide mechanical stability, ability to provide a suitable environment for arthrodesis, and ability to limit 'built-in' morbidity in addition, the materials used in the devices are examined regarding their biomechanical, biologic, and radiographic characteristics.