Patterns of failure after single-dose radiosurgery for spinal metastasis

Area of Science:

• Oncology
• Radiation Oncology
• Neurosurgery

Background:

• Solitary spinal metastases present a significant challenge for pain management and local tumor control.
• Single-dose radiosurgery has emerged as a promising palliative and potentially curative treatment modality.

Purpose of the Study:

• To investigate the patterns of treatment failure after single-dose radiosurgery for solitary spinal metastases.
• To evaluate the efficacy of spinal radiosurgery in achieving durable pain relief and local tumor control.

Main Methods:

• Retrospective review of 49 patients with 61 solitary spinal metastases treated with single-dose radiosurgery (10-16 Gy).
• Analysis of clinical data, patient questionnaires, and radiological imaging (CT/MRI) to assess pain control and tumor progression.
• Evaluation of failure patterns, including pain relapse and radiological evidence of local or adjacent tumor spread.

Main Results:

• Excellent pain control (complete or partial relief) was achieved in 85% of treated lesions.
• Low rates of pain relapse (7%) and radiological progression to adjacent spinal segments (5%) were observed.
• Tumor progression in adjacent areas was associated with progressive primary or systemic metastatic disease.

Conclusions:

• Single-dose spinal radiosurgery provides excellent and durable pain control for solitary spinal metastases.
• Local tumor recurrence and spread to adjacent spinal regions are rare following this treatment.
• Spinal radiosurgery is a highly effective treatment option for patients with solitary spinal metastases.