Conclusions: 1.There was few influence on the physical and mechanical properties of 20g domestic bone PMMA cement mixed with cephradine powder or demethylvancomycin powder less than 1.0g.

• 结 论： 1.；20g国产 PMMA骨水泥中加入不大于1g的头孢拉啶粉剂或盐酸去甲万古霉素粉剂对其物理和力学性能影响不大；