Image-guided robotic radiosurgery for spinal metastases

• Main Authors: Gibbs I.C., Kamnerdsupaphon P., Ryu M.-R., Dodd R., Kiernan M., Chang S.D., Adler Jr. J.R.
• Format: Article
• Language: English
• Published: 2014
• Online Access: http://www.scopus.com/inward/record.url?eid=2-s2.0-33847191077&partnerID=40&md5=0cc4cdc67b9c7557c4402fce6ad62a0f; http://cmuir.cmu.ac.th/handle/6653943832/2275
• Institution: Chiang Mai University

Background and Purpose: To determine the effectiveness and safety of image-guided robotic radiosurgery for spinal metastases. Materials/Methods: From 1996 to 2005, 74 patients with 102 spinal metastases were treated using the CyberKnife™ at Stanford University. Sixty-two (84%) patients were symptomatic. Seventy-four percent (50/68) of previously treated patients had prior radiation. Using the CyberKnife™, 16-25 Gy in 1-5 fractions was delivered. Patients were followed clinically and radiographically for at least 3 months or until death. Results: With mean follow-up of 9 months (range 0-33 months), 36 patients were alive and 38 were dead at last follow-up. No death was treatment related. Eighty-four (84%) percent of symptomatic patients experienced improvement or resolution of symptoms after treatment. Three patients developed treatment-related spinal injury. Analysis of dose-volume parameters and clinical parameters failed to identify predictors of spinal cord injury. Conclusions: Robotic radiosurgery is effective and generally safe for spinal metastases even in previously irradiated patients. © 2006 Elsevier Ireland Ltd. All rights reserved.