Metastasectomy of spinal lesions from thyroid carcinomas.

Abstract

Patients with differentiated thyroid carcinomas (DTCs) have a favourable long-term survival. Spinal metastases (SMs) cause a decline in performance status (PS), directly affecting mortality and indirectly preventing the use of systemic therapies. Metastasectomy is indicated, if feasible, as it yields the best local tumour control. Our study aimed to examine the long-term clinical outcomes of metastasectomy for SMs of thyroid carcinomas. We collected data on 22 patients with DTC (16 follicular and six papillary carcinomas) and one patient with medullary carcinoma who underwent complete surgical resection of SMs at our institution between July 1992 and July 2017, with a minimum postoperative follow-up of five years. The cancer-specific survival (CSS) from the first spinal metastasectomy to death or the last follow-up was determined using Kaplan-Meier analysis. Potential factors associated with survival were evaluated using the log-rank test. We analyzed the clinical parameters and outcome data, including pre- and postoperative disability (Eastern Cooperative Oncology Group PS 3), lung and non-spinal bone metastases, and history of radioiodine and kinase inhibitor therapies. Lung and other bone metastases at the time of surgery were observed in ten and eight patients, respectively. Three patients experienced local tumour recurrences at the operated site. The five- and ten-year CSS rates in the 22 patients with DTC were 77% and 52%, respectively. Pre- and postoperative disability and operative site tumour recurrence were identified as risk factors for short postoperative survival. Metastasectomy for resectable SM from DTC yielded favourable results and has the potential to improve survival.

• Authors: Satoshi Kato, Satoru Demura, Noriaki Yokogawa, Takaki Shimizu, Motoya Kobayashi, Yohei Yamada, Hideki Murakami, Hiroyuki Tsuchiya
• Journal: The bone & joint journal (Bone Joint J) Vol. 105-B Issue 5 Pg. 575-582 (May 01 2023) ISSN: 2049-4408 [Electronic] England
• PMID: 37121585 (Publication Type: Journal Article)
• Copyright: © 2023 The British Editorial Society of Bone & Joint Surgery.

Chemical References

• Iodine Radioisotopes

Topics

• Humans
• Metastasectomy
• Iodine Radioisotopes (therapeutic use)
• Neoplasm Recurrence, Local (drug therapy)
• Spine (pathology)
• Thyroid Neoplasms (surgery, drug therapy, pathology)
• Retrospective Studies
• Prognosis