At a glance
Regional or spinal anaesthesia is a technique that numbs a specific part of the body so that a patient can undergo surgery or a painful procedure without feeling pain in that area, while remaining awake or lightly sedated.
The anaesthesiologist (a doctor who specialises in pain and sedation) injects a local anaesthetic drug near a nerve, a cluster of nerves, or into the fluid that surrounds the spinal cord. The drug temporarily blocks the nerve signals travelling from that part of the body to the brain. Depending on which nerves are blocked, the patient loses feeling, and sometimes movement, from the waist down or in a single limb or region, while the heart, lungs, and mind continue working normally.
Medical Condition
Spinal and regional anaesthesia is chosen when a surgeon needs to operate on a defined area of the body and keeping the patient fully conscious or avoiding general anaesthesia (complete sedation of the whole body) is safer or preferred.
- Caesarean section (C-section) and other childbirth procedures
- Hip replacement, knee replacement, and other orthopaedic (bone and joint) surgeries on the lower limbs
- Hernia repair in the groin or abdomen
- Prostate, bladder, or other urological (urinary tract) surgeries
- Foot and ankle surgery
- Shoulder, arm, or hand surgery when a nerve block of the upper limb is used
- Haemorrhoid (piles) removal and other anorectal procedures
- Postoperative pain management after major chest or abdominal surgery
- Pain relief during labour without the need for full anaesthesia
Regional anaesthesia is not suitable for every patient or every situation. The anaesthesiologist will review medical history carefully before deciding.
- Patients who are taking blood thinners (medicines that reduce clotting) and cannot safely stop them before the procedure
- Active infection at the injection site or a widespread blood infection (sepsis)
- Certain disorders of blood clotting that have not been corrected
- Allergy to local anaesthetic drugs
- Certain spine abnormalities or previous spinal surgery that makes injection too difficult or risky
- A patient who is unable to cooperate and stay still during the injection, including some children and adults with severe anxiety
Risks & Complications
Regional and spinal anaesthesia is generally considered safer than general anaesthesia for many patients, but no medical procedure is without risk.
- Headache after a spinal injection: caused by a small leak of spinal fluid through the needle hole; usually resolves within a few days
- Low blood pressure (hypotension): the block can widen blood vessels, causing a temporary drop in pressure that the team monitors and corrects
- Incomplete block: the anaesthetic may not numb the area fully, requiring extra medication or a switch to general anaesthesia
- Bruising or soreness at the injection site
- Temporary difficulty urinating, requiring a short-term urinary catheter (a thin tube placed in the bladder)
- Nerve irritation: tingling or weakness in the affected area that usually clears within days to weeks
- Infection at the injection site, or, very rarely, a deeper spinal infection
- Haematoma (a collection of blood) pressing on the spinal cord, a rare but serious complication requiring urgent treatment
- Allergic reaction to the local anaesthetic drug
- Permanent nerve damage: recognised as a risk but occurs very rarely
Preparation & Procedure
Preparation for regional or spinal anaesthesia overlaps with preparation for the surgery it accompanies, but there are specific steps the anaesthesiologist will ask about beforehand.
Patients are usually asked to stop eating solid food for at least six hours before the procedure, and to stop drinking clear fluids for at least two hours. Blood thinners, anti-inflammatory painkillers, and certain herbal supplements often need to be paused for several days; the anaesthesiologist specifies exactly which ones and for how long. Smoking and alcohol are best avoided in the days before any procedure involving anaesthesia, as both affect how the body handles medication and recovers.
Before the procedure, several tests are typically ordered to check that spinal anaesthesia is safe. These may include blood clotting tests, a full blood count, kidney function tests, and sometimes an ECG (a recording of the heart's electrical activity). The anaesthesiologist will also ask about any previous reactions to anaesthesia, current medications, and any spine problems or back surgery.
On the day of the procedure, the sequence of steps usually follows this order:
- An intravenous (IV) line is placed in the arm to give fluids and medications during the procedure.
- Monitoring equipment is attached: blood pressure cuff, pulse oximeter (a device that measures oxygen in the blood), and ECG leads.
- The patient sits bent forward or lies on their side, curled into a C-shape, to open the spaces between the vertebrae (the bones of the spine).
- The skin over the injection site on the back is cleaned thoroughly and a small amount of local anaesthetic is injected to numb the skin.
- The anaesthesiologist inserts a thin needle between two vertebrae and delivers the anaesthetic drug into the spinal fluid (for a spinal block) or around the nerves (for an epidural or nerve block). The patient may feel pressure but not sharp pain.
- The needle is removed. For an epidural, a very thin tube (catheter) may be left in place to give further doses during a long procedure or for pain relief after surgery.
- The team waits a few minutes, then checks that the numbness is adequate before surgery begins.
- Throughout the procedure the patient's blood pressure, heart rate, and oxygen levels are monitored continuously.
Aftercare
After regional or spinal anaesthesia, the numbness and any weakness in the affected area take time to wear off, usually a few hours, and the care team will monitor the patient until normal sensation returns.
- The patient stays in a recovery area while the block wears off. Nurses check blood pressure, heart rate, and the return of sensation at regular intervals.
- Standing or walking is not attempted until the legs have fully regained strength and feeling, which the nursing team confirms with simple movement checks.
- If a urinary catheter was inserted, it is usually removed once the patient can walk to the toilet safely.
- A post-spinal headache, if it develops, is treated with rest, fluids, and pain relief medication. A procedure called a blood patch (a small injection of the patient's own blood near the original site) may be offered if the headache is severe and does not settle on its own.
- For epidurals left in place for ongoing pain control, a nurse or pain team checks the catheter site daily for signs of infection and ensures the correct level of pain relief.
- Returning to normal activities depends on the surgery itself, not just the anaesthesia. The surgical team will provide specific guidance on lifting, driving, and exercise.
- Follow-up appointments are set by the surgical team and, when relevant, the anaesthesiologist, to review recovery and address any lingering nerve symptoms.
- Any new or worsening back pain, weakness in the legs, or loss of bladder or bowel control after leaving hospital should prompt an immediate return to the nearest emergency department.
Cost & What Determines It
The cost of regional or spinal anaesthesia varies widely because it is almost never billed on its own. It is part of a broader surgical episode, and the final bill reflects the complexity of that episode as much as the anaesthesia technique itself.
- Type and length of surgery: a short spinal block for a simple procedure costs less than an epidural maintained for many hours during complex surgery or labour
- Hospital class and country: private hospitals in major cities and internationally accredited facilities charge more than general hospitals
- Anaesthesiologist's fee: charged separately from the hospital facility fee in most systems; seniority and subspecialty expertise affect the rate
- Continuous epidural catheter use: leaving a catheter in place for postoperative pain control adds consumable costs and nursing time
- Monitoring equipment and time in the recovery room
- Additional sedation or analgesia (pain relief medication) used alongside the block
- Pre-procedure tests such as blood clotting panels and ECG
- Management of complications, for example a blood patch for a post-spinal headache, if needed
Hospital packages for surgery usually include the operating theatre, standard nursing care, and basic consumables. The anaesthesiologist's fee, specialist consultations, pre-admission tests, and any drugs dispensed on discharge are commonly billed as separate line items, so it is worth asking the hospital for a full itemised estimate before the admission date.
BPJS Kesehatan and most Indonesian private insurance policies do not cover planned medical treatment abroad, which means most patients travelling overseas for surgery pay out of pocket or through an international private health insurance plan. Requesting a written cost estimate from the hospital before booking travel is the most reliable way to understand the likely total and avoid unexpected charges on the final bill.
Frequently Asked Questions
How many sessions of spinal anaesthesia will I need?
Spinal anaesthesia is given as a single injection for one procedure, not as a course of sessions. The anaesthesiologist (the doctor who manages your pain and sedation) administers it just before your surgery or procedure begins, and its effect wears off naturally over the following hours.
What does spinal anaesthesia feel like?
Most people feel a brief pressure or stinging sensation when the needle is inserted into the lower back, followed by warmth and numbness spreading through the legs and lower body. You stay awake but feel nothing below the injection site. Your anaesthesiologist will check that the numbness is working before your procedure starts.
How soon does spinal anaesthesia start working, and what should I avoid afterwards?
The numbing effect usually sets in within five to fifteen minutes of the injection. Afterwards, most patients are advised to rest lying down for a period and to avoid driving, operating heavy machinery, or making important decisions until full sensation and strength return to their legs, which can take several hours.
How much does spinal anaesthesia cost?
The cost depends on several factors, including the complexity and length of the procedure it supports, the class of hospital or clinic, and the level of monitoring required during your care. A written estimate from the hospital will give you the most accurate figure for your specific situation.
This page is general information, not a substitute for medical advice. Every case is different. Your doctor decides what is right for you.
