Biological properties of expandable bridge-arch interbody fusion cage / 中国组织工程研究

ABSTRACT

BACKGROUND:As spine endoscope and other microinvasive techniques develop, various fusion cages in particular expanded cage become the hot topic. OBJECTIVE:To introduce the design concept and biological characteristics of the novel expandable bridge-arch interbody fusion cage to treat lumbar degenerative disease. METHODS:A computer-based online search of Wanfang, CMB and VIP databases was performed for articles published between January 2000 and April 2011 related to the application of fusion cages in lumbar degenerative disease, with key words “lumbar degenerative disease, interbody fusion cage”. Insufficiency in present cages was analyzed and a novel cage should be designed. RESULTS AND CONCLUSION:A total of 50 relevant literatures were colected, and 27 were included. Results showed that ideal expandable cage should have smal size, convenience to placement, excelent biomechanical stability, and prevent postoperative loss of intervertebral height. Therefore, this novel expandable bridge-arch interbody fusion cage was developed. The novel cage has a very good perspective of application for many advantages, such as mini-invasive implantation, excelent stability and powerful ability to prevent sink.