1. Hanna SA, Aston WJ, Briggs TW, Cannon SR, Saifuddin A. Sacral chordoma: can local recurrence after sacrectomy be predicted? Clin Orthop Relat Res. 2008. 466:2217–2223.
2. McMaster ML, Goldstein AM, Bromley CM, Ishibe N, Parry DM. Chordoma: incidence and survival patterns in the United States, 1973-1995. Cancer Causes Control. 2001. 12:1–11.
3. Ferraresi V, Nuzzo C, Zoccali C, et al. Chordoma: clinical characteristics, management and prognosis of a case series of 25 patients. BMC Cancer. 2010. 10:22.
4. Nishida Y, Kamada T, Imai R, et al. Clinical outcome of sacral chordoma with carbon ion radiotherapy compared with surgery. Int J Radiat Oncol Biol Phys. 2011. 79:110–116.
5. Mirra JM, Della Rocca C, Nelson SD, Mertens F. Fletcher CD, Unni K, Mertens F, editors. Chordoma. Pathology and genetics of tumours of soft tissue and bone. 2002. Lyon, France: IARC Press;316–317.
6. Walcott BP, Nahed BV, Mohyeldin A, Coumans JV, Kahle KT, Ferreira MJ. Chordoma: current concepts, management, and future directions. Lancet Oncol. 2012. 13:e69–e76.
7. Catton C, O'Sullivan B, Bell R, et al. Chordoma: long-term follow-up after radical photon irradiation. Radiother Oncol. 1996. 41:67–72.
8. York JE, Kaczaraj A, Abi-Said D, et al. Sacral chordoma: 40-year experience at a major cancer center. Neurosurgery. 1999. 44:74–79.
9. Samson IR, Springfield DS, Suit HD, Mankin HJ. Operative treatment of sacrococcygeal chordoma. A review of twenty-one cases. J Bone Joint Surg Am. 1993. 75:1476–1484.
10. Wuisman P, Lieshout O, Sugihara S, van Dijk M. Total sacrectomy and reconstruction: oncologic and functional outcome. Clin Orthop Relat Res. 2000. (381):192–203.
11. Baratti D, Gronchi A, Pennacchioli E, et al. Chordoma: natural history and results in 28 patients treated at a single institution. Ann Surg Oncol. 2003. 10:291–296.
12. Hulen CA, Temple HT, Fox WP, Sama AA, Green BA, Eismont FJ. Oncologic and functional outcome following sacrectomy for sacral chordoma. J Bone Joint Surg Am. 2006. 88:1532–1539.
13. Fuchs B, Dickey ID, Yaszemski MJ, Inwards CY, Sim FH. Operative management of sacral chordoma. J Bone Joint Surg Am. 2005. 87:2211–2216.
14. Kaiser TE, Pritchard DJ, Unni KK. Clinicopathologic study of sacrococcygeal chordoma. Cancer. 1984. 53:2574–2578.
15. Bergh P, Kindblom LG, Gunterberg B, Remotti F, Ryd W, Meis-Kindblom JM. Prognostic factors in chordoma of the sacrum and mobile spine: a study of 39 patients. Cancer. 2000. 88:2122–2134.
16. Gunterberg B, Norlén L, Stener B, Sundin T. Neurourologic evaluation after resection of the sacrum. Invest Urol. 1975. 13:183–188.
17. Gunterberg B, Kewenter J, Petersén I, Stener B. Anorectal function after major resections of the sacrum with bilateral or unilateral sacrifice of sacral nerves. Br J Surg. 1976. 63:546–554.
18. Zabel-du Bois A, Nikoghosyan A, Schwahofer A, et al. Intensity modulated radiotherapy in the management of sacral chordoma in primary versus recurrent disease. Radiother Oncol. 2010. 97:408–412.
19. Cheng EY, Ozerdemoglu RA, Transfeldt EE, Thompson RC Jr. Lumbosacral chordoma. Prognostic factors and treatment. Spine (Phila Pa 1976). 1999. 24:1639–1645.
20. Stacchiotti S, Casali PG, Lo Vullo S, et al. Chordoma of the mobile spine and sacrum: a retrospective analysis of a series of patients surgically treated at two referral centers. Ann Surg Oncol. 2010. 17:211–219.
21. Stener B, Gunterberg B. High amputation of the sacrum for extirpation of tumors Principles and technique. Spine (Phila Pa 1976). 1978. 3:351–366.
22. Yonemoto T, Tatezaki S, Takenouchi T, Ishii T, Satoh T, Moriya H. The surgical management of sacrococcygeal chordoma. Cancer. 1999. 85:878–883.