J. Mater. Sci. Technol. ›› 2019, Vol. 35 ›› Issue (10): 2254-2262.DOI: 10.1016/j.jmst.2019.04.031

• Orginal Article • Previous Articles     Next Articles

In vitro and in vivo studies on the biodegradable behavior and bone response of Mg69Zn27Ca4 metal glass for treatment of bone defect

Junxiu Chenab, Jiahui Dongab, Huameng Fua, Haifeng Zhanga, Lili Tana*(), Dewei Zhaoc, Ke Yanga*()   

  1. aInstitute of Metal Research, Chinese Academy of Sciences, Shenyang, 110016, China
    bSchool of Materials Science and Engineering, University of Science and Technology of China, Shenyang, 110016, China
    cDepartment of Orthopedics, Affiliated Zhongshan Hospital of Dalian University, Dalian, 116001, China
  • Received:2019-01-06 Revised:2019-02-23 Accepted:2019-04-01 Online:2019-10-05 Published:2019-08-28
  • Contact: Tan Lili,Yang Ke

Abstract:

In the present work, the biodegradable behavior, cytocompatibility and osteogenesis activity of a Mg69Zn27Ca4 metal glass were investigated. Electrochemical test, immersion test, cytotoxicity test and histopathological evaluation were carried out. The results showed that there was a dense protective layer formed on the surface of Mg69Zn27Ca4 metal glass which could inhibit the degradation process in the Hank’s solution. In vitro cytotoxicity test showed that Mg69Zn27Ca4 metal glass had good biocompatibility. Histopathological evaluation showed that the degradation of Mg69Zn27Ca4 metal glass could promote the new bone formation with no obvious inflammatory reactions. After 2 months implantation, the diameter of the bone defect was reduced from the original φ6 mm to φ3.35 ± 0.40 mm with the degradation of Mg69Zn27Ca4 metal glass. Therefore, it can be concluded that Mg69Zn27Ca4 glass has great potential to be used as bone substitutes.

Key words: Mg69Zn27Ca4 metal glass, Degradation, Cytocompatibility, Bone substitutes