Abstract

INTRODUCTION

There may be several reconstruction methods in order to eliminate the defects developed after the surgery of malignant bone tumors. In this study, we aimed to evaluate our functional results in the treatment of bone defects by biological reconstruction method after primary malign bone tumor surgery.

METHODS

Between 2003-2017 years,24 patients with primary malignant bone tumors undergone biological reconstruction were included into study.11 of the patients had Ewing’s sarcoma,8 of them had osteosarcoma,2 of them had malignant giant cell tumor,2 of them had chondrosarcoma and 1 of them had fibrosarcoma. Autografting were applied in 18 cases, autografting after liquid nitrogen in 1 case and bone transport after distraction osteogenesis were applied in 5 cases.

RESULTS

14 of the patients were male,10 of them were female. The mean age was 18.6(5-42), follow-up period was 41.4 months (10-78) and bony defect was 10.7 cm (4-22). Mean MSTS scores was 77.3 reconstructed with bone transport and 74.5 undergone autografting. DASH score was 2.29(2.0-2.65), knee Society scores were 72.4(60-89) and the functional scores were 76.2 (65-91). There were nonunion in 3 cases undergone avascular fibulare grafting (%17.6) and 1 graft fracture. No neurovascular complication in any of the patients.Pin-tract infection was observed in 3 patients.

DISCUSSION AND CONCLUSION

One must avoid reconstructions that may affect the follow-up and treatment of the primary tumor when applying extremity-sparing surgery.Reconstruction with endoprosthesis must be the first-line option in the patients who are old,has high-grade tumor and has not treatment cooperation.On the other hand, for the patients with long survey with cooperation and ongoing bone development, biological reconstruction comes into prominence in terms of its regeneration providing nature with live bone tissue despite the shortcomings like nonunion, graft fracture and long treatment periods.In near future, we expect an increase in the use of biological reconstruction methods as some adjuvant factors that are facilitating union,graft hypertrophy and decreasing complications put into use.