Long-term outcomes following en bloc resection for sacral tumor: a retrospective analysis of 93 cases.

Sacral tumors are rare. Appropriate surgical resection is crucial to treat the disease while minimizing disease recurrence. We present the results of 93 patients with sacral tumors to analyze the long-term functional and oncological results of patients undergoing en bloc resection. The medical data between January 2003 and July 2010 was retrospectively reviewed. None of the 93 patients died intra- or postoperatively. Patients undergoing intralesional curettage (range, 6500-25,000 mL; mean, 13,500 mL) lost more blood than those patients with wide excision (range, 1000-8100 mL; mean, 3590 mL). Mean follow-up duration from the time of surgery until most recent clinic visit or death was 44.5 months (range, 6-105 months). This study is an educational tool regarding primary sacral tumors and provides evidence on the treatment. It presents results from a large group of patients with sacral tumor. After follow-up, we did not find that sacrificed nerve roots and surgical margins have an impact on the recurrence of the tumor. Patients undergoing intralesional curettage lost more blood than those patients with wide excision. Postoperative bladder/bowel dysfunction was more severe for patients with removal of S1 and S2.