A craniotomy is one of the most significant surgical decisions a neurosurgeon presents to a patient or their family. It involves temporarily removing a section of the skull to access the brain whether to remove a tumour, drain a blood clot, clip an aneurysm, or relieve dangerous intracranial pressure. The surgery is not performed as a first response to every brain condition; it is recommended when the anatomy of the problem makes direct surgical access necessary and no safer alternative exists.
According to Dr. Gurneet Singh Sawhney, neurosurgeon in Mumbai, “A craniotomy is not the default response to every brain condition. The decision depends entirely on whether the location and nature of the problem make direct surgical access the most effective and appropriate option, and whether the benefit of reaching that area outweighs the risks of getting there.”
Has your neurosurgeon mentioned craniotomy as part of your treatment plan?
When Is a Craniotomy Considered for a Patient?
A craniotomy is recommended when the brain condition cannot be adequately managed through medication, radiosurgery, or endovascular techniques alone, and direct access through the skull is the most effective surgical route available.
- Brain Tumour: To remove or biopsy a tumour while preserving surrounding function. Early evaluation is critical patients should review Brain Tumour Symptoms That Should Not Be Ignored as timing directly affects available surgical options.
- Brain Aneurysm: To place a surgical clip at the base of a weakened artery wall and prevent rupture or re-bleeding.
- Intracranial Haematoma: To directly evacuate a blood clot that is causing dangerous pressure or neurological deterioration.
- Arteriovenous Malformation (AVM): To resect abnormal tangles of arteries and veins when radiosurgery or embolisation alone is insufficient.
- Drug-Resistant Epilepsy: To resect or disconnect the seizure focus when anti-epileptic medications have failed, as part of planned epilepsy surgery.
- Brain Abscess: To drain a collection of pus within the brain when antibiotics alone cannot resolve the infection safely.
- Severe Head Injury: To relieve life-threatening intracranial pressure by temporarily removing the bone flap and giving the brain room to swell.
- Deep Brain Stimulation (DBS): To implant electrodes for patients with Parkinson’s disease, tremor, or dystonia through DBS surgery when movement symptoms no longer respond to medication.
- Awake Craniotomy: To map and protect speech, language, or motor areas in real time during tumour removal near eloquent brain regions see the awake craniotomy case study for a real patient example.
How Is a Craniotomy Performed and What Does Recovery Involve?
The procedure follows a structured sequence planned in full before the patient enters the operating room. Every stage is designed to minimise risk while achieving the surgical goal.
- Pre-Operative Workup: MRI or CT imaging, blood tests, neurological examination, and fasting from midnight before surgery.
- Anaesthesia: General anaesthesia in most cases; the patient remains conscious during cortical mapping in an awake craniotomy.
- Bone Flap Removal: The surgeon makes a scalp incision, removes a section of skull using a drill and craniotome, then opens the dura mater to access the brain.
- Surgical Treatment: The target is addressed using microscopes, neuronavigation, and intraoperative imaging as required.
- Closure: The dura is sutured, the bone flap is replaced and secured with plates or wires, and the scalp incision is closed.
- ICU Monitoring: Patients are observed in a high-dependency unit immediately after surgery with regular neurological checks.
- Hospital Stay: Most patients are discharged after five to seven days, with home-care instructions for wound care and medication.
- Home Recovery: A minimum of six weeks is needed before returning to normal activity; physiotherapy, speech therapy, or occupational therapy may be recommended depending on the area of the brain involved.
- Follow-Up Care: Repeat imaging, pathology review, and medication adjustment at scheduled appointments; contact your team immediately if you develop severe headaches, new seizures, fever, or sudden neurological changes. For what to expect during recovery, refer to 20 Things to Expect After Brain Surgery.
Why Choose Dr. Gurneet Singh Sawhney?
Dr. Gurneet Singh Sawhney brings 18 years of neurosurgical experience, including advanced fellowship training in functional neurosurgery and neuroendoscopy from Japan. His practice covers the full spectrum of cranial surgery from complex brain tumour surgery and aneurysm clipping to awake craniotomy, epilepsy surgery, and DBS implantation for movement disorders. Every treatment decision is made with an honest assessment of what surgery can realistically offer each individual patient.
Patients who act on neurological symptoms early consistently have more surgical options available and better functional outcomes after treatment. That window matters, and it does not stay open indefinitely.
Frequently Asked Questions
How long does a craniotomy surgery take?
Duration depends on what is being treated. Straightforward procedures may take two to three hours, while complex tumour resections or vascular cases can take six hours or more.
Is craniotomy a risky surgery?
All brain surgery carries risk, including bleeding, infection, neurological change, and anaesthetic complications. The actual level of risk depends on the problem’s location, the patient’s overall health, and the surgical team’s specific experience.
Will the skull heal completely after craniotomy?
Yes. The bone flap is replaced and secured at the end of surgery. It integrates with the surrounding skull over time and most patients return to normal skull structure without a permanent gap.
How soon can a patient go home after craniotomy?
Craniotomy requires hospitalisation for post-operative monitoring — typically five to seven days followed by a structured recovery period at home of at least six weeks before returning to normal activities.
Disclaimer: The information shared in this content is for educational purposes only and not for promotional use.