Gamma Knife Surgery (Radiosurgery)
Gamma Knife Surgery (Stereotactic Radiosurgery)
Gamma Knife Surgery, or Stereotactic Radiosurgery (SRS), is a non-invasive treatment that uses roughly 200 pinpoint beams of gamma radiation to treat brain abnormalities without an incision. As of 2026, it remains the "gold standard" for small, deep-seated lesions.
When You Should Consider Gamma Knife Surgery
Diagnosis of small to medium malignant brain metastases.
Presence of benign tumors like meningiomas or acoustic neuromas.
Chronic facial pain caused by Trigeminal Neuralgia.
Deep-seated Arteriovenous Malformations (AVMs) unsuitable for traditional surgery.
Functional disorders such as essential tremors or OCD.
Advanced Technology in 2026
Elekta Esprit: The newest generation platform offering sub-millimeter accuracy for complex cases.
Frameless Mask Options: Modern standards allow for mask-based treatments, enabling fractionated doses over several days.
Lightning Inverse Planning: Automated, real-time software that reduces planning time and human error.
Non-Invasive Approach: High-dose radiation delivered with surgical precision without a single scalp incision.
What the Procedure Treats
Brain Tumors: Malignant and benign growths located deep within the brain.
Vascular Malformations: Correcting blood vessel tangles (AVMs).
Nerve Disorders: Targeted treatment for the trigeminal nerve root.
Functional Issues: Neurological conditions impacting movement or behavior.
Success Rates & Clinical Outcomes
Tumor Control: Generally ranges between 85% and 95% for small tumors.
Acoustic Neuromas: Approximately 90% of patients see growth stop or shrink.
Trigeminal Neuralgia: About 90% of patients achieve significant pain relief within one year.
Life After Gamma Knife Surgery
Quick Recovery: Most procedures are outpatient; patients typically return home the same day.
Activity Resumption: You can usually return to normal daily activities within 24 to 48 hours.
Post-Op Care: Monitoring for mild headaches, fatigue, or minor scalp irritation.
Long-term Follow-up: Periodic MRI scans to track the shrinkage or stabilization of the treated area.
Benefits of Gamma Knife Surgery
No general anesthesia is required for most adult patients.
Eliminates the risks of infection and bleeding associated with open brain surgery.
Extremely high precision spares the surrounding healthy brain tissue.
Cost-effective compared to traditional neurosurgery due to shorter hospital stays.