Surgical Treatment of Pelvic Sarcomas: Oncologic and Functional Outcome

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Abstract

The experiences in treating 93 consecutive patients (56 males, 37 females; mean age, 38.5 years; range, 4–69 years), including 76 patients with primary malignant bone tumors and 17 patients with soft tissue sarcomas involving the innominate bone, are reported. Oncologic and functional results were investigated in relation to the tumor stage, to the achieved surgical margin, and to the surgical procedure (hemipelvectomy, internal hemipelvectomy and endoprosthetic replacement, and continuity resection). The mean followup was 48 months (range, 8–222 months). The 5-year survival was 86% in patients with low-grade malignant bone tumors, 42% in patients with high-grade malignant bone tumors, and 25% in patients with high-grade soft tissue sarcomas. Survival was influenced by the grade of malignancy, the tumor stage, and the achieved surgical margins. Forty-six patients who survived were examined an average of 36 months after primary surgery. Excellent and good functional results were seen in 82% of patients who underwent continuity resection and in 55.5% of patients who underwent partial or total internal hemipelvectomy. All patients who survived hemipelvectomy had poor functional results. Surgical treatment of pelvic sarcomas is an extensive procedure with a considerable incidence of complications. It requires the knowledge of different techniques of resection and reconstruction of bone, joints, soft tissue, and intrapelvic organs.

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