The experience on the surgical treatment of 26 patients with a Primary Malignant
Bone Tumor of the long bones in stage II-B is reported. There weve 12 osteosarcomas, 3
Ewing's sarcoma, 4 low-grade chondrosarcoma, 3 paraosteal sarcoma, 1 myeloma, 1 Adamantinoma
and 1 Giant-Cell tumor. Tumors were treated by chemotherapy protocols such as Rosen
T-10 for osteosarcomas and T-9 for Ewing's sarcoma, with 75-80% of tumor necrosis
disclosing a good response and sclerosis. All tumors were staged as II-BNoMo with vessels preservation
according to the DIVAS test. Sugery for limb salvage was performed in all these
patients based on ISOLS criteria. Costum-made or modular prosthetic implantation was the
surgical technique in 12 cases. Mixed methods susch as cryopreserved allografts they Endoprosthesis
was applied in 10 patients, two cases were treated by knee arthrodesis with a femorotibial
endomedulary Kunstcher's nail and an allograft. Other 2 cases received endomedular
and cortical osteosyntesis to stabilize the allograft. The paper describes the functional evaluation
of each patient depending on the type of tumor, the size of the bone resection, complications,
recurrences, metastases, surgical revisions and also level of subjective personal satisfaction of
each patient.

The experience on the surgical treatment of 26 patients with a Primary Malignant
Bone Tumor of the long bones in stage II-B is reported. There weve 12 osteosarcomas, 3
Ewing's sarcoma, 4 low-grade chondrosarcoma, 3 paraosteal sarcoma, 1 myeloma, 1 Adamantinoma
and 1 Giant-Cell tumor. Tumors were treated by chemotherapy protocols such as Rosen
T-10 for osteosarcomas and T-9 for Ewing's sarcoma, with 75-80% of tumor necrosis
disclosing a good response and sclerosis. All tumors were staged as II-BNoMo with vessels preservation
according to the DIVAS test. Sugery for limb salvage was performed in all these
patients based on ISOLS criteria. Costum-made or modular prosthetic implantation was the
surgical technique in 12 cases. Mixed methods susch as cryopreserved allografts they Endoprosthesis
was applied in 10 patients, two cases were treated by knee arthrodesis with a femorotibial
endomedulary Kunstcher's nail and an allograft. Other 2 cases received endomedular
and cortical osteosyntesis to stabilize the allograft. The paper describes the functional evaluation
of each patient depending on the type of tumor, the size of the bone resection, complications,
recurrences, metastases, surgical revisions and also level of subjective personal satisfaction of
each patient.