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Eur J Surg Oncol. 2000 Feb;26(1):53-60.

Osteosarcoma of the pelvis--oncological results of 40 patients registered by The Netherlands Committee on Bone Tumours.

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Department of Orthopaedic Surgery, Groningen University Hospital, The Netherlands.



We reviewed the oncological outcome in 40 consecutive patients with an osteosarcoma of the pelvic region, registered in the files of the Netherlands Committee on Bone Tumours (NCBT) between 1978 and 1995.


Six patients had distant metastases at initial presentation (Enneking stage IIIB), 33 patients had stage IIB osteosarcoma and one patient stage IB osteosarcoma. Patients with metastases were treated with chemotherapy (four) or palliative procedures (two). Patients with non-metastatic osteosarcoma were treated with surgical procedures with (14) or without (four) neoadjuvant chemotherapy, chemotherapy without surgical resection (nine), or palliative procedures (seven). The median survival of stage IIB and IIIB osteosarcoma was 14 months (2-175) and 7.5 months (2-16), respectively. Survival in patients with stage IIB osteosarcoma treated with curative procedures was significantly better (P<0.0006) compared with stage IIB patients treated with palliative intent. Two and 5-year survival for patients with curatively treated stage IIB osteosarcoma was 35% and 26%, respectively; distant metastases had developed in 65% of these patients. On univariate analysis, positive prognostic factors for patients with stage IIB osteosarcoma were complaints of 3 months or less before initial presentation, tumour size of 8 cm or less, osteoblastic subtype, surgical resection of the primary tumour and limb salvage procedures.


In conclusion, the prognosis of pelvic osteosarcoma remained poor despite modern multimodality treatment regimens, including neoadjuvant chemotherapy.

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