Abstract

INTRODUCTION

Objective: Osteosarcoma is usually seen in childhood and young adults and presents itself very aggressive. Great treatment success with limb-sparing surgery and chemotherapy are provided, but the residue tumor cells that remains at the microscopic level are increasing the likelihood of tumor recurrence. The aim of this study was to evaluate the in vitro applicability of cadmium with cement and to evaluate the preliminary findings for its effectiveness in preventing the possibility of residual tumor and recurrence by local application after surgery.

METHODS

Materials and Methods: The MG-63 and K7M2 osteosarcoma cell lines were divided into four groups. The first group included application of bone cement which absorbed cadmium after preparation. The second group of bone cements were prepared with adding cadmium into powdered bone cement was applied to the cell lines in increasing numbers. The percentages of viability in cell lines were evaluated using WST-1 method and compared with bone cement prepared in the standard manner without adding cadmium and application of cadmium solution into cell lines.

RESULTS

Results: In the second group where the cement was prepared by adding cadmium before bone cement mixing; higher cytotoxic effect was detected than the first group which consisted of bone cement which absorbed cadmium after cement preparation. When cadmium solution without bone cement was applied, 5 and 10-fold dilutions showed the highest anti-proliferative effect in the study (25% and 42% viability). In the group where bone cement without any cadmium was applied, the highest rate of viability was observed reaching up to %80.

DISCUSSION AND CONCLUSION

Conclusion: This study has shown that bone cement either prepared with cadmium or absorbed cadmium after preparation; may be administered as an adjuvant therapy and both have cytotoxic effects upon osteosarcoma