How Peripheral Nerve Surgery Is Performed: Decompression, Repair and Tumor Removal Explained

The numbness started as a nuisance: a hand that fell asleep during the drive home, a little finger that tingled while she held her phone. Now the splint she was told to wear at night sits on the nightstand, the nerve tests are done, and the surgeon has used a word she was not expecting to hear about a wrist. Surgery. Her first question is not about risk or recovery. It is simpler: what will they actually do in there?

That question deserves a plain answer, because understanding how peripheral nerve surgery is performed changes how a person prepares for it and how patiently they wait afterward. The peripheral nerves are the cables that run from the spinal cord to the skin and muscles. Operations on them fall into three families, and each has its own logic, its own timeline and its own honest limits.

This explainer walks through all three, from the anesthesia to the months of healing, without promises and without jargon left undefined.

What actually happens when a surgeon operates on a nerve

Picture a household electrical cable. Inside the outer sheath run bundles of thinner wires, each carrying its own signal. A peripheral nerve is built the same way. Individual nerve fibers, called axons, travel in bundles called fascicles, and the whole bundle is wrapped in a protective coat of connective tissue. Nerve surgery is essentially cable work carried out at a scale where the structures are often thinner than a matchstick.

Once anesthesia is working and the skin is cleaned, the surgeon makes an incision along the known path of the nerve. Nerves do not sit in random places; a trained surgeon knows where the median nerve crosses the wrist or where the ulnar nerve tucks behind the elbow. Tissue is separated in layers rather than cut through, and the nerve is identified by its appearance and, in many operations, by gentle electrical stimulation that makes the matching muscle twitch. That twitch confirms the surgeon is holding the right structure and that it still conducts.

From there the operation branches. If a ligament or scar band is squeezing the nerve, it is divided or removed. If the nerve is torn, its ends are trimmed back to healthy tissue and reconnected. If a tumor has grown within the sheath, it is separated from the working fibers. Magnification is the common thread: loupes, which are magnifying lenses worn like glasses, or an operating microscope allow the surgeon to see individual fascicles and to place stitches finer than a human hair.

The skin is then closed, a dressing or splint applied, and the slow biology of healing takes over. The surgeon’s work ends in an hour or a few; the nerve’s work can take a year. Mayo Clinic notes that injured nerve fibers regrow at roughly 1 inch (2.5 centimeters) per month, a figure worth remembering throughout this article.

How peripheral nerve surgery is performed: decompression, repair or removal?

Three problems bring people to a nerve surgeon, and the operation is chosen to fit the problem rather than the other way around.

The first is pressure. A nerve passing through a tight anatomical tunnel can be squeezed by a thickened ligament, swelling or scar. Carpal tunnel syndrome at the wrist and cubital tunnel syndrome at the elbow, where the ulnar nerve is compressed, are the familiar examples. The fix is decompression: create room so the nerve can glide and receive its blood supply again. Nothing is done to the nerve itself.

The second is injury. A laceration, a fracture, a shoulder dislocation or a traction injury can stretch or sever a nerve. According to Mayo Clinic, a nerve that is cut will not reconnect on its own, and the gap has to be bridged surgically. Peripheral nerve repair surgery covers direct stitching, grafting and nerve transfers, each described later.

The third is a growth. Peripheral nerve tumors arise from the cells that insulate and support nerve fibers. Mayo Clinic describes most of them as benign, meaning noncancerous, but a growing lump can still cause pain, tingling or weakness by pressing on the fibers around it. Removal aims to take the tumor out while sparing the working nerve.

How peripheral nerve surgery is performed therefore depends on which of these three a person has, and sometimes on more than one. A crush injury may need both decompression of scar and repair of damaged fascicles. The pre-operative tests, covered in the section on who is offered surgery, are what let the team match the operation to the problem before the first incision.

Nerve decompression surgery: releasing a trapped nerve

Decompression is the most common peripheral nerve operation and, in principle, the simplest. The nerve is fine; its surroundings are not. The surgeon’s task is to widen the passage.

Carpal tunnel release shows the pattern. The median nerve runs into the palm beneath a tough band called the transverse carpal ligament. In open release, the surgeon makes a short incision at the base of the palm and divides that ligament along its length. In endoscopic release, a thin camera and blade are passed through one or two smaller cuts and the ligament is cut from underneath. Mayo Clinic describes both techniques and notes that the ligament heals back with more room for the nerve, which is why the wrist does not become unstable afterward.

Elsewhere the same idea applies with local variations. At the elbow the ulnar nerve may simply be released from the tissue roofing the cubital tunnel, or, if it keeps slipping over the bone, it may be moved to a new bed in front of the elbow, a step called transposition. At the ankle, tarsal tunnel release frees the tibial nerve. In the leg, the common peroneal nerve near the knee can be released where it wraps around the fibula.

What patients often notice first is not the incision but the change in sensation. Pins and needles that were caused by pressure can ease within days as blood flow returns, while numbness caused by long-standing fiber loss recovers far more slowly, if at all. The NHS notes that carpal tunnel release is usually performed under local anesthetic as a day procedure, which means most people are awake, comfortable and home the same day.

Peripheral nerve repair surgery: stitches, grafts and nerve transfers

When a nerve is cut, the fibers beyond the injury die back while the cell bodies near the spinal cord survive and try to sprout new axons. Repair surgery gives those sprouts a path to follow.

Direct repair, also called primary neurorrhaphy, is used when the two ends can meet without tension. Under the microscope, the surgeon trims each end to healthy tissue, lines up the fascicles as closely as the anatomy allows, and joins the outer sheath with a handful of extremely fine stitches. Tension matters: a stretched repair scars, and scar blocks regrowing fibers.

When the gap is too wide, a nerve graft bridges it. Mayo Clinic explains that the graft is usually a sensory nerve taken from elsewhere in the same person, commonly the sural nerve at the back of the calf, which leaves a patch of numbness on the outer foot in exchange for a scaffold the regrowing fibers can travel through. The graft does not carry signals itself; it is a living tube that guides sprouting axons toward their old targets. Synthetic conduits and processed donor grafts exist for short gaps, and the choice is a surgical judgment based on length, location and timing.

Nerve transfer is the newer strategy. Instead of repairing a nerve at the injury site, the surgeon borrows a healthy, less important nerve branch nearby and connects it to the paralyzed muscle’s nerve close to the muscle. Because the regrowing fibers now have a short journey, muscle can be reached before it wastes away. Mayo Clinic lists transfers alongside grafting as standard options for severe injuries.

Which technique is used, and whether the operation should be done urgently or after weeks of observation, depends on whether the nerve is cleanly cut or crushed. That judgment sits with the treating team.

Nerve tumor removal surgery: working under the microscope

A lump on a nerve is alarming to feel, yet Mayo Clinic notes that most peripheral nerve tumors are benign. The two most frequent kinds are schwannomas, which grow from the Schwann cells that insulate nerve fibers, and neurofibromas, which grow from several cell types inside the nerve at once. That difference in origin dictates how the surgeon approaches them.

A schwannoma typically grows from a single fascicle and pushes the others aside, like a marble caught under the fabric of a shirt. Under the microscope, the surgeon opens the outer sheath, identifies the fascicles that are merely stretched over the tumor and moves them away, then removes the tumor from the one fiber bundle it came from. Nerve stimulation during the operation helps distinguish working fascicles from the tumor capsule. Most of the nerve’s function can often be preserved when the anatomy allows, though a patch of numbness or temporary weakness is possible.

A neurofibroma is more intertwined with the fibers that pass through it. Removing it entirely may mean sacrificing part of the nerve, so the surgeon and patient decide beforehand whether the goal is complete removal, partial debulking to relieve pressure, or observation with repeat imaging. Mayo Clinic describes monitoring as a reasonable choice for small tumors that are not causing symptoms.

A small proportion of nerve tumors are malignant peripheral nerve sheath tumors, which are cancers. These are handled differently, with wider removal and often a cancer team involved, and imaging plus a biopsy, a sampling of tissue for examination, usually precedes the decision. Any tissue removed in any nerve tumor operation is sent to a pathologist, and the result guides follow-up.

Who is usually offered surgery, and who is usually asked to wait

Nerve surgeons are, as a group, comfortable saying no or not yet. The reason is that the tests used to plan surgery also reveal who is unlikely to benefit.

Nerve conduction studies measure how fast and how strongly a signal travels along a nerve. Electromyography (EMG) uses a fine needle to listen to the electrical activity of muscle. Together they show where a nerve is compressed or blocked and whether the muscle it supplies is still receiving any signal. Mayo Clinic describes both, along with ultrasound and MRI, as the standard workup for nerve injuries and compression. MRI is particularly useful for tumors, because it shows the growth’s size and its relationship to the nerve.

Surgery is commonly offered when:

• a nerve has been cleanly cut, since Mayo Clinic notes such nerves do not heal on their own;
• compression symptoms persist despite splinting, activity changes or a steroid injection, which the NHS lists as first steps for carpal tunnel syndrome;
• weakness or muscle wasting is developing, a sign that fibers are being lost;
• a tumor is growing, painful or affecting function.

People are usually asked to wait, or offered other care, when symptoms are mild and recent, when a stretched but intact nerve shows early signs of spontaneous recovery on serial testing, when a small tumor is stable and silent, or when the numbness comes from a generalized neuropathy rather than a single trapped nerve. Uncontrolled diabetes, active infection and smoking also prompt a pause, because each slows healing. None of these are refusals; they are sequencing decisions, and they belong to the treating team in conversation with the patient.

How painful is a peripheral nerve block, and how painful is nerve surgery?

Two separate fears hide in these questions, so they deserve separate answers.

A peripheral nerve block is an injection of local anesthetic around a nerve trunk, guided by ultrasound, so that everything downstream goes numb. It is used for many hand, arm and leg operations either alone or alongside sedation. What people feel is a skin pinch and a brief sting as the medicine goes in, sometimes followed by a spreading warmth or heaviness. Once the block is working, the limb feels like a sleeping arm that does not wake. The block itself is not the painful part of the day; most people describe it as comparable to having blood drawn.

Nerve surgery itself is not felt during the operation. Under a block or local anesthetic, patients may notice pressure, tugging or the sound of the room, but not pain. Under general anesthesia they are asleep. The discomfort begins as the numbness wears off, usually within several hours to a day depending on the block, and it is generally described as a sore, bruised feeling around the incision rather than sharp pain. Decompressions tend to hurt less than repairs, and repairs less than operations that involve harvesting a graft from the leg.

Two sensations deserve advance warning. First, tingling, buzzing or brief electric flicks in the days and weeks after surgery are typically signs of a recovering nerve, not damage. Second, the palm or elbow can stay tender to pressure for weeks after decompression. Pain control plans, whether based on acetaminophen, anti-inflammatory medicines or short courses of stronger analgesics, are set by the anesthesia and surgical teams and should never be adjusted without them.

How long does peripheral nerve surgery take? A side-by-side view

Operating time depends less on the size of the incision than on what the surgeon finds under the microscope. A carpal tunnel release is a brief procedure; a brachial plexus reconstruction, which rebuilds the nerve network between neck and arm, can occupy most of a day. The NHS describes carpal tunnel release as a short day-case operation done under local anesthetic, and Mayo Clinic notes that recovery from it typically takes several weeks to a few months. The table below groups the three families for orientation only; the surgical team will give the estimate that fits an individual case.

Operation type	Typical anesthesia	Typical time in theater	First sign of recovery	Typical horizon for full recovery
Decompression (carpal tunnel, cubital tunnel, tarsal tunnel)	Local, or nerve block with sedation	Well under an hour for most single-site releases	Tingling eases within days as pressure lifts	Weeks to months; long-standing numbness may recover only partly (Mayo Clinic)
Repair (direct stitch, graft, nerve transfer)	General, sometimes with a block for after-pain	One to several hours; longer for multiple nerves or grafts	Advancing tingling along the nerve path over months	Many months to a year or more, since fibers regrow about 1 inch per month (Mayo Clinic)
Tumor removal (schwannoma, neurofibroma)	General, with nerve monitoring	One to several hours depending on size and location	Pressure pain relieved early; numbness variable	Weeks for the wound; months if fascicles were disturbed

A practical note on the clock: the time a family waits is longer than the operating time. Add anesthesia induction, positioning of the limb, the setup of the microscope, wound closure, splinting and the recovery room. A forty-minute release can easily mean three hours at the facility, and a graft repair can mean a full day and, occasionally, an overnight stay.

Nerve decompression surgery recovery: what the first days and weeks usually look like

The first evening after a decompression is mostly about elevation. Keeping the hand above the heart limits swelling, which in turn limits throbbing. A bulky dressing or a light splint protects the incision, and most people are encouraged to move their fingers the same day so tendons do not stick to healing tissue.

During the first week the dressing is reduced, and the incision is kept clean and dry. Stitches are typically removed or dissolve at around 10–14 days, a range the NHS gives for carpal tunnel release. Light daily tasks such as eating, dressing and typing for short spells are usually possible within days; gripping, lifting and pushing up from a chair are deferred, because the healed ligament needs time to regain strength.

Weeks two through six are when patience is tested. The tingling that woke people at night is often gone, yet the scar can be tender, and pressing the heel of the hand on a countertop may produce a deep ache known as pillar pain. This is common, fades gradually and is not a sign of failure. Grip strength usually lags behind sensation.

Beyond six weeks, most people are back to ordinary activity, and Mayo Clinic notes that complete recovery after carpal tunnel surgery may take several months. Cubital tunnel surgery at the elbow tends to run slower than wrist surgery because the ulnar nerve has a longer distance to recover and the elbow moves constantly. Return to work depends on the job: a desk worker may be back within a week or two, a manual worker may need six weeks or more, and the treating team will set a plan rather than a promise.

Why recovery after nerve repair is measured in months, not weeks

Here is the piece of biology that explains almost every frustration after a nerve repair. When an axon is cut, the segment beyond the injury breaks down and is cleared away over the following weeks. The surviving stump then sends out sprouts that must find the empty tubes left behind, travel down them and finally reconnect with skin or muscle. Mayo Clinic puts the pace at roughly 1 inch (2.5 centimeters) per month. A nerve repaired at the wrist has about six inches to travel to the fingertips; a nerve repaired at the shoulder has a journey of two feet or more to the hand.

That arithmetic is why surgeons talk in seasons. The first weeks look like any wound: swelling settles, stitches come out and a splint may hold the repaired joint in a position that keeps the stitches slack. Then comes a long quiet stretch in which the limb looks and feels unchanged. Gentle tapping along the nerve’s path, called a Tinel’s test, can produce tingling at the point the regrowing fibers have reached, and that point should march forward at follow-up visits.

Sensation usually returns before strength, and it returns strangely: first as pressure, then as a buzzing or over-sensitivity, later as something closer to normal touch. Sensory re-education, a form of hand therapy that trains the brain to interpret the new signals, is a standard part of care.

Muscle is the deadline. A muscle without nerve supply gradually replaces its fibers with fat and scar, and after roughly a year to eighteen months it can no longer accept a returning nerve. This is why timing matters and why nerve transfers, with their shorter regrowth distance, are chosen for injuries far from the target muscle.

Risks and alternatives, described plainly

No account of how peripheral nerve surgery is performed is complete without what can go wrong and what the alternatives are, stated without drama.

The general risks are those of any operation: bleeding, infection, a reaction to anesthesia and a scar that is thicker or more tender than expected. The specific risks follow from the anatomy. A nerve can be bruised or, rarely, injured during the operation, causing new numbness or weakness that is usually temporary. Decompression may not fully relieve symptoms if fibers were already lost, and compression can occasionally recur through scar. Repairs can heal with a neuroma, a painful tangle of regrowing fibers that failed to find their path. Grafting leaves a numb patch where the donor nerve was taken. Tumor removal can sacrifice a fascicle, and a benign tumor can, uncommonly, regrow. Complex regional pain syndrome, a poorly understood condition of prolonged limb pain and swelling, is an infrequent complication of limb surgery in general. Individual likelihoods vary with the site and the person, and the surgeon’s consent discussion is where they belong.

The alternatives are real rather than token. For compression, the NHS and Mayo Clinic list splinting, particularly at night, adjustment of activities, and corticosteroid injection near the nerve to reduce inflammation. For mild injuries in which the nerve is bruised but intact, observation with repeat testing often shows spontaneous recovery, and therapy keeps joints supple while waiting. For small, silent tumors, monitoring with periodic imaging is an accepted path. For pain from a damaged nerve, medicines that calm abnormal nerve signaling, physical therapy and pain-clinic techniques can be used with or without surgery. None of these is universally better; each is matched to a particular nerve and a particular person by the treating team.

Is surgery the most successful treatment for peripheral neuropathy?

People searching for the most successful treatment for peripheral neuropathy often land on pages about nerve surgery, and the honest answer requires separating two different things that share a name.

Peripheral neuropathy, in the broad sense, is damage to many nerves at once, usually from a body-wide cause. The NIH’s National Institute of Neurological Disorders and Stroke estimates that more than 20 million people in the United States have some form of it, and identifies diabetes as the most common cause, with others including alcohol, vitamin deficiencies, chemotherapy, autoimmune disease and inherited conditions. This kind of neuropathy affects the longest nerves first, producing the classic stocking-and-glove numbness in both feet or both hands. There is no operation for it, because there is no single site to release or repair. The evidence-based approach, according to both NINDS and the NHS, is to treat the cause where possible, control blood sugar, manage pain with medicines and therapy, and protect insensate feet from injury.

Focal or entrapment neuropathy is different. Here a single nerve is compressed at a known point, and surgery has a clear rationale. Confusion arises because the two can coexist: a person with diabetic neuropathy is also more prone to carpal tunnel syndrome, and nerve conduction studies help separate what the compression is causing from what the diabetes is causing.

So the framing of the search question is itself the problem. Surgery is not competing with medicines to be the best treatment for neuropathy; it addresses a specific, mechanical subset of nerve problems. Claims that decompression at several sites can reverse generalized diabetic neuropathy remain unproven, and mainstream guidance does not endorse them. When a surgeon proposes releasing a nerve, the appropriate question is whether the tests show that nerve is actually trapped.

What people often get wrong about nerve surgery

Some misunderstandings surface at nearly every pre-operative visit. Correcting them early prevents disappointment later.

“The surgeon fixes the nerve, so feeling comes back when the wound heals.” In decompression the surgeon relieves pressure and in repair the surgeon aligns the ends, but the nerve does the healing. Mayo Clinic’s figure of about 1 inch of regrowth per month means the incision will look finished long before the nerve is.

“Numbness that has lasted years will disappear after release.” Pressure that has caused fibers to die leaves fewer fibers to recover. Surgery reliably stops further loss and often eases tingling, but long-standing dense numbness and muscle wasting may improve only partly. The nerve tests before surgery are the best guide to what is realistic.

“Tingling after surgery means something went wrong.” Buzzing, electric flicks and over-sensitivity are typical of nerves reconnecting. Persistent new weakness or numbness in a different area is a different matter and should be reported.

“Endoscopic is always better than open.” Mayo Clinic describes both approaches as effective for carpal tunnel release, with minor differences in early comfort and scar. The surgeon’s experience with a technique matters more than the label.

“A nerve tumor means cancer.” Most peripheral nerve tumors are benign, and many small ones are monitored rather than removed.

“Once a nerve is cut there is nothing to lose by waiting.” The opposite is true for muscle, which can only be reinnervated within a limited window. Delay narrows the options, which is why a cut nerve should be assessed promptly.

“Supplements or devices can do what surgery does.” There is no mainstream evidence that vitamins, creams or stimulation devices release a trapped nerve or bridge a severed one.

Questions to ask your care team before peripheral nerve surgery

A good consultation is a two-way exchange, and surgeons generally welcome specific questions because they signal that the patient understands what is being offered. These are the ones that tend to change decisions.

• Which nerve is involved, and what do my nerve conduction study and EMG show about how severely it is affected?
• Is this operation a decompression, a repair or a tumor removal, and are there elements of more than one?
• What would you expect to happen if I chose to wait three or six months instead, and how would we monitor that?
• What kind of anesthesia do you plan, and will I be awake?
• How long is the operation itself, and how long should my companion expect to be at the facility?
• If a graft is needed, where will it be taken from, and what numbness will that leave?
• If this is a tumor, is it likely to be a schwannoma or a neurofibroma, and how does that change the plan?
• What will I be able to do with the limb in the first week, and when can I drive, type, lift or return to my particular job?
• Which sensations after surgery are expected, and which should prompt a call?
• Will I need hand or physical therapy, and when does it start?
• Given my test results, what degree of recovery would you consider realistic, and what would you consider unlikely?
• What is your plan for pain control, and who adjusts it if it is not enough?

Bringing a written list and a second pair of ears helps. So does asking the team to draw the nerve’s path on the skin or on a diagram; seeing where the incision falls relative to the tunnel or the injury makes the operation far less abstract. Whatever the answers, the decision remains a shared one, and taking a few days to think it over is entirely reasonable for any non-emergency case.

When to call your doctor after nerve surgery

Most recoveries are uneventful, and most of what people feel in the first weeks, from tenderness to tingling, is part of healing. A short list of signs, however, should prompt a call to the surgical team the same day rather than waiting for the next scheduled visit.

• Fever, or an incision that becomes increasingly red, hot, swollen or leaks cloudy fluid, since these can signal infection.
• Bleeding that soaks through the dressing and does not stop with firm pressure and elevation.
• Pain that steadily worsens after the first two or three days instead of easing, or pain that is out of proportion to what was described to you.
• New numbness, weakness or loss of movement in a part of the hand, arm, foot or leg that was working before the operation.
• Fingers or toes beyond a splint or dressing that turn pale, blue or cold, or a dressing that feels too tight to tolerate.
• A calf that becomes swollen, warm and painful, or sudden breathlessness or chest pain, which are warning signs of a blood clot and warrant emergency care.
• Any reaction such as rash, facial swelling or difficulty breathing after a medicine.

Before surgery, urgent assessment is also warranted for an injury in which a limb has gone numb or weak after a cut, fracture or dislocation, because Mayo Clinic notes that a severed nerve will not reconnect on its own and timing affects the options. Rapidly progressing weakness in both legs or both arms, or numbness accompanied by loss of bladder or bowel control, points to the spinal cord rather than a peripheral nerve and needs emergency evaluation.

The surgical team’s contact number, printed on the discharge sheet, exists for these moments. Calling about something that turns out to be normal costs nothing; missing an infection or a clot can cost a great deal.

Frequently asked questions

How long does peripheral nerve surgery take?

It ranges from well under an hour for a single-site decompression such as carpal tunnel release to several hours for nerve grafting, nerve transfers or complex tumor removal. The NHS describes carpal tunnel release as a short day-case procedure under local anesthetic. Time at the facility is longer than operating time because of anesthesia, positioning, closure and recovery, and the surgical team will give a case-specific estimate.

How painful is a peripheral nerve block?

Most people describe it as similar to a blood draw: a skin pinch, a brief sting as the local anesthetic is injected, then a spreading warmth or heaviness as the limb goes numb. The block is placed with ultrasound guidance to keep the needle away from the nerve itself. The main discomfort of the day comes later, as the numbness wears off over several hours.

How painful is nerve surgery itself?

The operation is not felt, because it is done under local anesthetic, a nerve block, general anesthesia or a combination. Afterward, most people describe a bruised, sore feeling around the incision rather than sharp pain, worst in the first two to three days and easing thereafter. Repairs and graft harvest sites tend to be more uncomfortable than decompressions. Pain plans are set by the treating team.

What is the most successful treatment for peripheral neuropathy?

For generalized peripheral neuropathy, the NIH and NHS point to treating the underlying cause, such as controlling blood sugar in diabetes, together with medicines and therapy for pain and foot protection. Surgery is not a treatment for this widespread type. It is used for focal problems where a single nerve is trapped or cut, which nerve conduction studies can identify.

What is peripheral nerve repair surgery and when is it needed?

It is the reconnection of a nerve that has been cut or severely damaged, using direct stitching when the ends meet without tension, a graft when there is a gap, or a nerve transfer that reroutes a nearby healthy branch. Mayo Clinic notes that a severed nerve does not heal on its own, so clean cuts are usually repaired promptly while crush injuries may be observed first.

What does nerve decompression surgery recovery involve?

Expect elevation and finger movement on the first day, a dressing for about a week, and stitches out or dissolved around 10–14 days according to the NHS. Light tasks resume within days; gripping and lifting wait several weeks. Scar tenderness and pillar pain in the palm are common and fade. Mayo Clinic notes that complete recovery after carpal tunnel surgery may take several months.

How is nerve tumor removal surgery done without damaging the nerve?

The surgeon works under an operating microscope with electrical nerve monitoring. For a schwannoma, the healthy fascicles stretched over the tumor are moved aside and the growth is removed from the single bundle it arose from. Neurofibromas are more intertwined with the fibers, so removal may be partial or may involve sacrificing a fascicle, a trade-off discussed before the operation. Removed tissue is always examined by a pathologist.

Will I be awake during peripheral nerve surgery?

Often, for smaller decompressions such as carpal tunnel or cubital tunnel release, which the NHS notes are commonly done under local anesthetic or a nerve block with light sedation. Repairs, transfers and most tumor removals are usually performed under general anesthesia because they take longer and require nerve monitoring. The anesthesia team chooses the approach with the patient based on the operation and health history.

Is tingling after nerve surgery a bad sign?

Usually not. Buzzing, electric flicks and over-sensitivity along the nerve’s path are typical of fibers recovering from pressure or regrowing after repair, and they often precede the return of normal feeling. New numbness or weakness in an area that worked before surgery, or tingling accompanied by increasing pain, fever or a tight dressing, is different and should be reported to the surgical team.

Can a nerve that has been compressed for years fully recover after surgery?

Not always. Prolonged pressure causes some fibers to die, and those cannot be restored by removing the pressure. Surgery reliably stops further loss and frequently relieves tingling and night waking, but dense long-standing numbness and muscle wasting may recover only partly. Pre-operative nerve conduction studies and EMG give the surgeon the best sense of what is realistic in an individual case.

References

• NHS: Carpal tunnel syndrome
• NIH National Institute of Neurological Disorders and Stroke: Peripheral neuropathy
• Cleveland Clinic: Carpal tunnel syndrome
• MedlinePlus: Carpal tunnel syndrome

This article is for general information only and is not a substitute for professional medical advice. Please consult a qualified doctor about your individual situation.