This report is comprehensive results of our clinical series in which we report theoretical advantages and indication of recycling autograft following extracorporeal irradiation in malignant bone and soft tissue tumors.

We have treated in 24 patients by en bloc resection, extracorporeal irradiation and reimplantation of irradiated bone from june 1994 to june 1999. All patients were evaluated radiologiccal union, functional results and complication.

The radiologiccal union of junctional sites had appeared at 9.1 months postoperatively. The mean functional results was 73%, we used the criteria of Enneking et al.. There are 10 cases (47.6%) of complication, witch were nonunion, epiphyseal collapse, joint instability, infection, local recurrence and metal failure.

The recycling autograft following extracorporeal irradiation is a useful method on minimal bony destruction, preserving joint function as osteoarticular autograft, using bone with soft tissue (ligament and tendon) attachment in periarticular tumor and biological spacer in immature skeletal age.