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.