%0 Journal Article
%T Effect of Elastic Modulus on Biomechanical Properties of Lumbar Interbody Fusion Cage<br>
%A Yue Zhu
%A Fusheng Li
%A Shujun Li
%A Yulin Hao
%A Rui Yang
%A <br>
%J 材料科学技术学报
%D 2009
%I 
%X This work focuses on the influence of elastic modulus on biomechanical properties of lumbar interbody fusion cages by selecting two titanium alloys with different elastic modulus. They were made by a new β type alloy with chemical composition of Ti-24Nb-4Zr-7.6Sn having low Young0s modulus ~50 GPa and by a conventional biomedical alloy Ti-6Al-4V having Young0s modulus  110 GPa. The results showed that the designed cages with low modulus (LMC) and high modulus (HMC) can keep identical compression load ~9.8 kN and endure fatigue cycles higher than 5×106 without functional or mechanical failure under 2.0 kN axial compression. The anti-subsidence ability of both group cages were examined by axial compression of thoracic spine specimens (T9~T10) dissected freshly from the calf with averaged age of 6 months. The results showed that the LMC has better anti-subsidence ability than the HMC (p<0.05). The above results suggest that the cage with low elastic modulus has great potential for clinical applications.
%K Titanium alloy
%K Lumbar
%K Interbody fusion cage
%K Biomechanics<br>
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=84529CA2B2E519AC&jid=324DC3CAB22330DB19158AE0A9B7BFA5&aid=2721200544173F61C18C821DF5F525C2&yid=DE12191FBD62783C&vid=C5154311167311FE&iid=38B194292C032A66&sid=86C0C9A759FDA8CA&eid=A5B34D9E8FDA439A&journal_id=1005-0302&journal_name=材料科学技术学报&referenced_num=0&reference_num=21