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KMID : 0311120090500050689
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Yonsei Medical Journal
2009 Volume.50 No. 5 p.689 ~ p.696
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Survival Rate and Neurological Outcome after Operation for Advanced Spinal Metastasis (Tomita’s Classification ≥ Type 4)
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Kwon Young-Min
Kuh Sung-Uk
Chin Dong-Kyu
Jin Byung-Ho
Cho Yong-Eun
Kim Keun-Su
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Abstract
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Purpose:We investigated whether primary malignancy entities and the extent of tumor resection have an effect on the survival rate and neurological improvement in patients with spinal metastases that extend beyond the vertebral compartment (Tomita’s classification ≥ type 4).
Materials and Methods:We retrospectively reviewed 87 patients with advanced spinal metastasis who underwent surgery. They were divided into groups 1 and 2 according to whether they responded to adjuvant therapy or not, respectively. They were subdivided according to the extent of tumor resection: group 1, gross total resection (G1GT); group 1, subtotal resection (G1ST); group 2, gross total resection (G2GT); and group 2, subtotal resection (G2ST). The origin of the tumor, survival rate, extent of resection, and neurological improvement were analyzed.
Results:Group 1 had a better survival rate than group 2. The G1GT subgroup showed a better prognosis than the G1ST subgroup. In group 2, the extent of tumor resection (G2GT vs. G2ST) did not affect survival rate. In all subgroups, neurological status improved one month after surgery, however, the G2ST subgroup had worsened at the last follow-up. There was no local recurrence at the last follow-up in the G1GT subgroup. Four out of 13 patients in the G2GT subgroup showed a local recurrence of spinal tumors and progressive worsening of neurological status.
Conclusion:In patients with spinal metastases (Tomita’s classification ≥ type 4), individuals who underwent gross total resection of tumors that responded to adjuvant therapy showed a higher survival rate than those who underwent subtotal resection. For tumors not responding to adjuvant therapy, we suggest palliative surgical decompression.
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KEYWORD
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Bone neoplasm, decision making, metastasis, prognosis
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