SPINE SBRT:
TREATING SPINAL METASTASES WITHOUT SURGERY
Precise, high-dose radiation to vertebral metastases in 1β5 sessions β delivering durable pain control and local tumour control while sparing the spinal cord.
analyticsAt a Glance
- check_circle1β5 fraction treatment, typically completed in under 2 weeks
- check_circleLocal control rates of 85β95% at 1 year
- check_circleAvoids the risks and recovery of spinal surgery
- check_circleAvailable at leading centres in India and China
What Is Spine SBRT?
Spine SBRT (stereotactic body radiation therapy) uses advanced image guidance to deliver ablative radiation doses to vertebral metastases with sub-millimetre precision, avoiding the spinal cord.
Ablative Dosing
Doses of 16β24 Gy are delivered in 1β3 fractions, compared to 30 Gy in 10 fractions with conventional RT β producing superior local control.
Image-Guided Targeting
Real-time imaging (CBCT, MRI) and motion management ensure the tumour is hit precisely while the spinal cord constraint is respected every session.
Who Is a Candidate for Spine SBRT?
Patient selection is guided by spinal instability score, tumour histology, prior radiation, and neurological status.
Ideal Candidates
Patients with 1β3 vertebral metastases, SINS score β€6 (stable spine), intact neurology, and radioresistant histologies (renal cell, melanoma, sarcoma).
Relative Contraindications
Spinal cord compression with myelopathy, SINS β₯13 (unstable spine requiring surgery first), or prior high-dose RT to the same level requiring careful re-irradiation planning.
Spine SBRT: Key Outcome Data
- 85β95%1-Year Local ControlAcross histologies in prospective series
- 65β80%Pain Response RateSignificant pain reduction within 4β8 weeks
- <5%Vertebral Fracture RiskAt dose-optimised vertebral body sites
- 1β5Fractions RequiredTreatment completed in days, not weeks
Common Spine SBRT Dose Fractionation Schedules
Dose selection depends on tumour volume, prior RT, spinal cord proximity, and histology.
| Fractions | Dose | Indication | Notes |
|---|---|---|---|
| 1 fraction | 16β24 Gy | Radioresistant histologies (RCC, melanoma) | Highest BED; careful spinal cord planning required |
| 3 fractions | 24β27 Gy | Most histologies; post-surgical re-irradiation | Standard in most international guidelines |
| 5 fractions | 25β30 Gy | Larger tumour volume; cord-adjacent lesions | Greater dose distribution flexibility |
| Re-irradiation | 20β24 Gy / 2β3 fx | Previously irradiated spine | Cumulative spinal cord dose constraint applies |
Spine SBRT vs Surgical Stabilisation
For patients with stable spines and no neurological compromise, SBRT offers comparable tumour control with lower procedural risk.
Spine SBRT Advantages
- No anaesthesia or surgical riskOutpatient treatment for most patients
- Rapid recoveryReturn to systemic therapy within days
- Treats multiple levelsMultiple spinal segments can be treated simultaneously
- Effective for radioresistant tumoursAblative dosing overcomes conventional RT resistance
Surgical Approach Advantages
- Immediate spinal stabilisationRequired when SINS β₯13 or acute neurological deficit
- Cord decompressionSurgical decompression for epidural spinal cord compression with myelopathy
- Histological confirmationWhen biopsy is needed alongside stabilisation
Local Control Rates by Tumour Histology
SBRT achieves high local control across histologies, particularly for tumours resistant to conventional radiation.
Local Control at 1 Year
- Renal Cell Carcinoma90%
- Lung Adenocarcinoma88%
- Breast Cancer85%
- Melanoma82%
- Colorectal Cancer78%
Explore More SBRT Topics
In-depth guides covering SBRT across cancer types and clinical settings.
Frequently Asked Questions
About Spine SBRT
Is spine SBRT painful?
The treatment itself is painless β patients lie still on the treatment table while radiation is delivered. Some experience mild fatigue or temporary worsening of back pain in the first 1β2 weeks, which typically resolves. Severe acute toxicity is uncommon with modern planning techniques.
How soon does pain improve after spine SBRT?
Most patients notice meaningful pain reduction within 4β8 weeks. A subset experience a pain flare in the first 1β2 weeks, managed with short-course steroids. Durable pain control is seen in 65β80% of treated patients across published series.
Can spine SBRT be repeated if the tumour recurs?
Re-irradiation SBRT is possible at the same vertebral level, but requires careful cumulative spinal cord dose planning. Most experienced centres will consider re-treatment at 6β12 months after initial SBRT if spinal cord constraints allow. This decision is made case-by-case with detailed dosimetric review.
What is the risk of spinal cord injury with SBRT?
Radiation myelopathy (spinal cord injury) is rare with modern SBRT planning β occurring in under 1% of cases in prospective series. Treatment planning constrains the spinal cord dose to safe limits (typically Dmax β€14 Gy for single fraction). Experienced centres with dedicated spine SBRT programs have the lowest complication rates.
Is spine SBRT available outside the US and Europe?
Yes. Leading cancer centres in India (Tata Memorial, Apollo Proton, Manipal) and China (PUMCH, Sun Yat-sen, Fudan) offer spine SBRT with linear acceleratorβbased and CyberKnife platforms. CancerFax can help identify the right centre based on your tumour type and treatment history.
How CancerFax Helps
CancerFax is a specialist cancer access and patient-navigation platform. We help patients and families understand their options, organise medical records, coordinate hospital communication, and support cross-border treatment planning where appropriate.
We help collect and organise reports, scans, pathology, biomarker results, and treatment history for structured case review.
We communicate with hospitals or trial teams to assess whether a case may be suitable for further screening.
We support appointment coordination, document submission, translation, and direct communication with international departments.
For international patients, we help with practical coordination β travel planning, hospital admission guidance, and local support.
If this option is not suitable, we help explore other relevant treatments, clinical trials, or advanced care pathways.
From inquiry through to follow-up, our coordinators provide a single point of contact for the family.
CancerFax does not guarantee treatment access, eligibility, or clinical outcome. Our role is to help patients access accurate information, structured review, and appropriate specialist pathways.
Does Spine SBRT Apply to Your Case?
Upload your imaging and pathology reports. Our oncology team will assess SBRT eligibility and connect you with experienced centres in India or China.
This content is for informational purposes only and does not constitute medical advice. Always consult a qualified oncologist before making treatment decisions.