<prompt> Management plan for osteogenic sarcoma of the lower end of femur must include -Radiotherapy, amputation, chemotherapySurgery aloneChemotherapy Limb Salvage Surgery ChemotherapyChemotherapy Radiotherapy  <response>: The usual protocol is : -First give neoadjuvant chemotherapy Pre-operative chemotherapy.Neo-adjuvant chemotherapy is followed by surgery : - This may be limb salvage surgery most of the time or amputation depending on the situation.Surgery is followed by postoperative chemotherapy. 