Fast Neutron radiotherapy for osteosarcoma

Twelve patients with advanced osteosarcoma were treated with fast neutron at the Neutron Therapy Facility, The High-Energy Physics Institute, Chinese Academy of Sciences. Five patients were operated in our hospital after radiotherapy, three were accepted fast neutron alone, others added⁶⁰Co. The doses ranged from 660ncGy to 2168ncGy. The pain was released, the size of tumour was smaller in almost of the patients. Only one case was found to be histologically free of viable turnout. The skin reactions was serious, all the patients were in poor function of keen joint.