PURPOSE: When patients show progression after conventional fractionated radiation for spine metastasis, further radiation and surgery may not be options. Stereotactic body radiotherapy (SBRT) has been successfully used in treatment of the spine and may be applicable in these cases. We report the use of SBRT for 60 consecutive patients (81 lesions) who had radiological progressive spine metastasis with epidural involvement after previous radiation for spine metastasis. METHODS AND MATERIALS: SBRT was used with fiducial and vertebral anatomy-based targeting. The radiation dose was prescribed based on the extent of spinal canal involvement; the dose was 8 Gy×3=24 Gy when the tumor did not touch the spinal cord and 5 to 6 Gyx5=25 to 30 Gy when the tumor abutted the cord. The cord surface received up to the prescription dose with no hot spots in the cord. RESULTS: The median overall survival was 11 months, and the median progression-free survival was 9 months. Overall, 93% of patients had stable or improved disease while 7% of patients showed disease progression; 65% of patients had pain relief. There was no significant toxicity other than fatigue. CONCLUSIONS: SBRT is feasible and appears to be an effective treatment modality for reirradiation after conventional palliative radiation fails for spine metastasis patients.
PURPOSE: When patients show progression after conventional fractionated radiation for spine metastasis, further radiation and surgery may not be options. Stereotactic body radiotherapy (SBRT) has been successfully used in treatment of the spine and may be applicable in these cases. We report the use of SBRT for 60 consecutive patients (81 lesions) who had radiological progressive spine metastasis with epidural involvement after previous radiation for spine metastasis. METHODS AND MATERIALS: SBRT was used with fiducial and vertebral anatomy-based targeting. The radiation dose was prescribed based on the extent of spinal canal involvement; the dose was 8 Gy×3=24 Gy when the tumor did not touch the spinal cord and 5 to 6 Gyx5=25 to 30 Gy when the tumor abutted the cord. The cord surface received up to the prescription dose with no hot spots in the cord. RESULTS: The median overall survival was 11 months, and the median progression-free survival was 9 months. Overall, 93% of patients had stable or improved disease while 7% of patients showed disease progression; 65% of patients had pain relief. There was no significant toxicity other than fatigue. CONCLUSIONS: SBRT is feasible and appears to be an effective treatment modality for reirradiation after conventional palliative radiation fails for spine metastasis patients.
Authors: Roman O Kowalchuk; Michael R Waters; K Martin Richardson; Kelly Spencer; James M Larner; Jason P Sheehan; William H McAllister; Charles R Kersh Journal: J Radiosurg SBRT Date: 2020
Authors: David C Weksberg; James N Yang; Alda L Tam; Jing Li; Xin A Wang; Zhongxiang Zhao; Stephen E McRae; Stephen H Settle; Laurence D Rhines; Eric L Chang; Paul D Brown; Amol J Ghia Journal: J Radiosurg SBRT Date: 2016
Authors: Rachit Kumar; Anick Nater; Ahmed Hashmi; Sten Myrehaug; Young Lee; Lijun Ma; Kristin Redmond; Simon S Lo; Eric L Chang; Albert Yee; Charles G Fisher; Michael G Fehlings; Arjun Sahgal Journal: Neurooncol Pract Date: 2015-07-27