Wide-awake local anaesthesia no tourniquet — — is a way of numbing the hand for surgery in which the person stays fully awake, without sedation or a general anaesthetic1. Local anaesthetic mixed with is injected around the area to be operated on. The local anaesthetic blocks pain. The adrenaline narrows the small blood vessels and reduces bleeding2, so the operation can be done without a — the tight cuff otherwise placed on the arm to keep the operating area free of blood.
The approach is now used for many common hand operations, including and release, surgery for , tendon repair, and some fracture fixation1. Its acceptance required revisiting an old teaching: that adrenaline must never be injected into a finger3.
This article is for clinicians who refer people with hand conditions — general practitioners (GPs), emergency department doctors and surgical colleagues — and for patients who have been offered an operation under local anaesthesia and want to understand what that means. It covers the principle, the evidence on its benefits and limits, who it may and may not suit, the alternatives, and the questions worth asking before surgery. It gives no doses or injection plans; those belong to the treating team.

What "wide awake" means

In conventional hand surgery, a cuff on the upper arm or forearm is inflated to stop blood flow and give the surgeon a clear, bloodless view4. An inflated tourniquet is uncomfortable for an awake person14. That is one reason hand operations have often been done under sedation or a general anaesthetic5, or with a regional block6.
WALANT replaces the tourniquet with the effect of adrenaline. Lignocaine with adrenaline is injected at the site of surgery1, and the injection is often given by the surgeon7. The person stays awake, can talk with the team, and can move the hand when asked1. The injection itself is often the most uncomfortable part of a minor procedure8.
Adrenaline takes time to work. In a small randomised study in volunteers, the amount of blood in the skin was lowest at about 25 minutes after injection — longer than older teaching suggested9. There is therefore usually a wait between the injection and the first incision. In a meta-analysis of trigger finger release, the time before the operation was longer with WALANT and the time after it shorter10.

Adrenaline in the finger: an old rule revisited

For much of the twentieth century, medical texts taught that adrenaline should not be injected into fingers, because it might cut off the blood supply and cause gangrene5. When the teaching was traced to its sources, the reported cases were mostly from before 1950. They involved procaine or cocaine, which could themselves damage the circulation, and often other factors such as hot soaks, tight tourniquets and infection115. A 2001 review found no reported case of finger gangrene after commercially prepared lignocaine with adrenaline, available since 194811.
Prospective data followed. In a multicentre series of 3,110 consecutive elective injections of low-dose adrenaline into the hand and fingers, there was no case of finger tissue loss, and , the drug that reverses adrenaline, was never needed12. A retrospective review of 1,111 cases of finger and hand surgery reported no gangrene in the 611 people given adrenaline; people with impaired circulation were not given adrenaline and were excluded13.
If a finger stays pale, the effect of adrenaline can be reversed with an injection of phentolamine. In a randomised, blinded study in volunteers, colour returned an average of 85 minutes after a phentolamine injection, compared with 320 minutes after a saline injection14.
Much of this early evidence came from the group that first described the technique1125. The evidence is reassuring but not complete. A Cochrane review found only four small randomised trials of adrenaline in digital (finger and toe) blocks, all at high risk of bias. It judged the evidence insufficient to recommend for or against adrenaline, and none of the trials reported on ischaemia2. A 2022 systematic review identified three published cases of finger necrosis after local anaesthetic with adrenaline and advised caution15. The same review noted that in at least one European country, product labelling still excluded use in the fingers15.
Circulation problems. Most studies of adrenaline in the fingers excluded people at risk of poor circulation16, so the evidence says least about the people in whom the theoretical risk is highest. Some authors advise identifying, and possibly excluding, people with previous vascular injury, scleroderma, Raynaud's disease, Buerger's disease or vasculitis1; others suggest adrenaline may still be considered when the small vessels are affected15. For a particular person with one of these conditions, the choice is an individual judgement for the treating surgeon.

What the evidence shows

Comfort during the operation

The most consistent finding is less pain during surgery than with local anaesthesia and a tourniquet. A 2025 meta-analysis of 11 randomised controlled trials (794 patients) found that WALANT reduced pain during the operation by an amount the authors judged clinically meaningful17. Differences in pain during the injection and in the hours afterwards were smaller and did not reach that threshold17. Earlier meta-analyses also found less pain with WALANT, during or after surgery, with operating times similar or up to about two minutes longer18194.
The size of the benefit may depend on the operation and the surgeon. In a randomised trial of carpal tunnel release by experienced surgeons, pain during surgery was slightly lower with WALANT than with local anaesthesia and a tourniquet, but the difference was not clinically meaningful, and the authors noted that longer operations might behave differently20.

Satisfaction and experience

Satisfaction with WALANT is generally high19, but comparisons with other methods are mixed. A 2024 meta-analysis found higher satisfaction with WALANT than with tourniquet-based anaesthesia in randomised trials, although results varied widely between studies21. An earlier meta-analysis found no clear difference18.
Preference cuts both ways. In a prospective comparison of carpal tunnel release, 93 per cent of people operated on wide awake would choose that method again, and 93 per cent of those given sedation would choose sedation again22. The wide-awake group spent less time in hospital, needed fewer pre-operative tests and reported less anxiety before surgery22. In a retrospective series of 100 patients, 86 per cent of those who returned a questionnaire said they would prefer to be wide awake for future hand surgery23.
One retrospective series suggests that a mental health diagnosis need not by itself rule WALANT out: people with a pre-existing psychiatric diagnosis tolerated it nearly as well as others, although they rated the injection as more painful24.

Safety and outcomes

Serious complications are uncommon. A 2024 meta-analysis pooling 79 studies and more than 15,000 patients estimated an overall complication rate of about 1.7 per cent, most often superficial wound infection25. In randomised trials comparing WALANT with tourniquet-based anaesthesia, complication rates were similar17.
For trigger finger release, a meta-analysis found no difference in function or adverse events between WALANT and local anaesthesia with a tourniquet. It rated the certainty of evidence as low to very low and did not confirm that WALANT is superior10. For fixation of distal radius fractures, a meta-analysis found WALANT non-inferior to regional and general anaesthesia, with slightly higher blood loss of doubtful clinical importance26.

Watching the hand move

Because the person can move, the surgeon can watch the hand work during the operation — for example, checking a repair or setting the tension of a tendon transfer before the skin is closed127. Whether this improves long-term results is uncertain. For flexor tendon repair, one meta-analysis found slightly better range of movement with WALANT, from few randomised trials28, while an evidence-based review of zone II repairs did not find WALANT superior29.

Preparation, setting, cost and waste

Without sedation or a general anaesthetic, much of the usual preparation falls away. Fasting and pre-operative anaesthetic assessment are often unnecessary, and monitoring after surgery is shorter122.
Many WALANT procedures can be done outside the main operating theatre with minimal draping1. This "field sterility" means a prepared hand, a single drape, sterile gloves and a mask. A prospective multicentre series of 1,504 carpal tunnel releases done this way under local anaesthesia reported a superficial infection rate of 0.4 per cent and no deep infection7.
Studies from different settings report lower costs3010 and less surgical waste3132. How far these findings carry over depends on local facilities, training and organisation33.

Limits and risks

The injection is felt. Careful technique can reduce the discomfort of a local anaesthetic injection, but it remains part of the experience8.
Being awake is not for everyone. Patient anxiety is a commonly reported barrier33. Some people feel shaky or anxious after the injection, and some may faint; lying down for the injection is one precaution described1. Many people who have had sedation prefer it22.
The field is not bloodless, and there is a wait. In distal radius fracture fixation, blood loss was slightly higher with WALANT26; in carpal tunnel release, a meta-analysis found no difference4. The adrenaline also needs time to take effect9.
The dose of local anaesthetic is limited. Any local anaesthetic can cause if too much reaches the bloodstream, and limiting the dose is one way the risk is reduced34.
Adrenaline can speed up the heart. Concern has been raised about unsafe heart rates in people with heart disease. One group describes using WALANT routinely in patients with cardiovascular disease without complications, from its own experience rather than published data1. For a person with heart disease, the decision is individual.
Some conditions need specific planning. These include true allergy to the local anaesthetic and some rare medical conditions1.
Occasionally the plan changes. An operation started under WALANT sometimes has to be converted to a general anaesthetic. In the distal radius meta-analysis this happened in 1.2 per cent of WALANT cases, compared with 6.5 per cent of regional anaesthesia cases26.
Children are a special case. The evidence is limited. A 2026 systematic review of 11 studies found no major complications and rare conversion to sedation or general anaesthesia, and stressed careful selection and child-centred communication35.

Who may be suited

No single checklist decides this. Published experience points to several factors that are weighed together:

Alternatives

WALANT is one of several ways to anaesthetise the hand. Each has a place:
  • Local anaesthetic with a tourniquet. In comparison studies, this causes more pain during surgery than WALANT417.
  • A Bier block, or , in which local anaesthetic is given into a vein of the arm and kept in the limb by a tourniquet. Discomfort from the tourniquet can mean sedation is needed36.
  • A , an injection around the main nerves to the arm. A 2026 meta-analysis found pain during surgery broadly comparable with WALANT and a shorter hospital stay with WALANT, on very low-certainty evidence37. Blocks have their own side effects, which differ by technique, and the choice of block depends on the site and length of the operation, the person and the operator's experience6.
  • Sedation or general anaesthesia, in which the person is drowsy or asleep. This needs anaesthetic preparation and monitoring, and some people prefer it22.
No one method suits every person or every operation. The choice is made with the surgeon and, where one is involved, the anaesthetist.

Questions worth asking before surgery

  • Is WALANT an option for my operation, and why or why not?
  • What will I feel during the injection and the operation, and what happens if I feel pain or become anxious?
  • How long will I be there, including the wait for the adrenaline to work?
  • Do I need to fast, and should I keep taking my usual medicines, including any blood thinners? Do not stop a medicine without advice.
  • I have a condition that affects the circulation in my hands, a heart condition, or have had a reaction to a local anaesthetic. Does that change the plan?
  • What are the alternatives for me, and what are their trade-offs?
  • How long will my hand stay numb, and what should I watch for at home?
Lignocaine with adrenaline can keep a finger numb for many hours14. After surgery, contact the surgical team or seek urgent care if a finger looks white or feels cold and is not improving, or if pain, redness or swelling increase rather than settle.

A final note

For a person offered hand surgery under WALANT, the practical picture is this: an injection that is often the most uncomfortable part, a wait while the adrenaline takes effect, and an operation during which they are awake, can talk, and may be asked to move their fingers. In exchange there is no tourniquet, no sedation and no general anaesthetic, usually with less preparation beforehand and a shorter stay afterwards. Not everyone wants to be awake for surgery, and that preference counts.
For the referring clinician, the question is rarely whether an operation can be done wide awake. It is whether this person, this operation and this setting suit it. Circulation problems in the fingers, significant anxiety, the expected length of surgery and the person's own preference all bear on the choice, which the surgeon makes with the patient. A note of vascular history, heart conditions and any previous reaction to a local anaesthetic in the referral helps that conversation.
WALANT is a widely studied option for many hand operations, not a requirement for any of them.