Arm lift

An arm lift covers the removal of excess skin on the upper arm and, where needed, the reduction of subcutaneous fatty tissue.¹ The decision rests not only on the laxity of the arm but on where the scar will sit and how the arms are used in daily life. This article addresses the choice of incision, adding liposuction, the recovery timetable, and swelling, altered sensation and wound problems.

What is an arm lift?

An arm lift is also called brachioplasty. It is an operation directed at sagging skin and excess tissue in the part of the upper arm between the armpit and the elbow.¹ Ageing, changes in weight and inherited features can affect the appearance of this area.¹ The distribution of the excess along the arm matters as much as its amount.²

Removing excess skin and reducing fat are not the same procedure. Liposuction can be added, directed at the fatty tissue; in an arm lift, removing the excess skin is part of the plan as well.³ The aim of the operation is not to achieve a particular fall on the scales or to bring everyone's arm to the same measurement. The goal is set within the limits of the excess tissue seen at examination.

A scar remains in return for the skin removed.⁴ The procedure is therefore not assessed on how much the sagging can be reduced alone. When the scar may be visible in daily life, and whether that is acceptable to the person, is addressed at the outset of the decision.

Who is it suitable for?

Adults with marked laxity of the skin on the upper arm, whose weight is relatively stable and who have no health problem that would impede healing, are assessed.⁵ Marked weight loss can be one of the causes of excess skin.⁶ Not every laxity of the skin needs operating on; the person's expectation and their acceptance of the scar that will form are considered together.

An average of 6 months of stable weight is sought when planning the operation. That interval is not on its own the decision on suitability. The course of weight, skin quality, the amount of fatty tissue and general health are considered together. Changes in weight after surgery can affect the result.⁴

It should be known that the scar cannot be hidden entirely in open clothing. Planning the scar on the inner side of the arm is not a guarantee that it will remain invisible.³⁴ Where a person wants the excess skin reduced but does not accept the incision scar, that difference in expectation is clarified before surgery. A consultation is not a stage at which a decision to operate has to be made.

What does the examination assess?

The distribution of the excess skin along the arm, the contribution of subcutaneous fatty tissue and whether the excess extends into the armpit are assessed.²³ Differences between the 2 arms at the outset, existing scars and previous procedures are recorded. The reason for the length of the incision is not explained by the excess seen with the arm down alone; how the incision line will be affected during movement is shown as well.

Any existing numbness, pain spreading to the hand or forearm, swelling and restriction of movement are declared before surgery. In that way complaints present beforehand are not confused with changes developing after surgery. Medication in use, cigarettes and nicotine products, coexisting illnesses and problems with previous operations are assessed.⁷

Whether the person's work requires lifting, their need to drive and the help available at home are planned. How much the arms will be used in dressing, getting out of bed, carrying things and personal care is addressed in advance. Arranging for help with tasks that may need it at the outset does not mean remaining motionless all day.

How is the operation planned?

Is excess skin or fatty tissue the main issue?

The plan is built by separating the position of the excess and the contribution of skin and fatty tissue.² The area where skin needs removing and the area where liposuction is applied do not have to be the same; surgical sources describe different forms of combining the two.⁸⁹ The names of the procedures being used together does not mean that everyone is operated on to the same extent.

How much tissue is removed, the tension when the incision is closed and the relationship with the surrounding tissue are assessed together. It is not assumed that removing more tissue from the arm automatically gives a more suitable result. The aim of the plan is not the shortest scar, or the greatest amount of tissue removed, taken on its own.

Where is the incision made and how far does it extend?

The incision is planned on the inner side of the arm and can extend into the armpit where needed. Its length is determined by the amount of excess skin and subcutaneous fatty tissue. Incisions of different lengths and positions have been described for brachioplasty; the choice depends on the extent of the excess.³

The scar is planned on the inner side so as to be less noticeable at first glance from the front or the back. That is an aim for its position. Raising or turning the arm can change how visible it is; in open clothing it may not be possible to hide the scar entirely. Where the incision line will lie is shown at examination, and no promise of invisibility is made.

Can a short-scar arm lift be an option?

Limited-incision methods can be planned in suitable people; the decision depends on the deformity.² A wish for a shorter scar is not on its own a criterion for choosing the method. The distribution of the excess skin and the extent of the incision proposed are explained together.²

Technical descriptions of short incisions should not be read as proof that they give the same result as a long incision with less risk.² In a review examining methods of arm contouring, the studies were reported not to be combinable quantitatively.⁹ The methods are therefore not placed in an order of superiority; what excess each option addresses, and where it remains limited, is assessed.

How are liposuction and other procedures added?

Liposuction directed at the subcutaneous fatty tissue is added to the arm lift. That removing skin and reducing fat have separate aims is explained.³ Studies of the techniques applied together exist, but their results do not show that the same extent is needed in every patient.⁸⁹

Where a procedure for the abdomen or the back is also planned, the incision and movement requirements of each area are addressed separately. The decision between one session and staged surgery is made by joint assessment. The order of several areas is the subject of a plan for body contouring after weight loss; what is described here is the incision and movement plan for the arm. An arm lift alone does not mean that the other areas will improve as well.

How are anaesthesia and the hospital stay planned?

The operation is carried out under general anaesthesia. 1-2 hours are expected for the operation and 1-2 nights for the hospital stay. These intervals are the clinical framework for the arm lift as planned. Where there are added procedures, the total operative and care plan is assessed separately.

Discharge is not given on the clock alone. General condition, pain control, movement and assessment of the incision are taken into account together. The instructions about the drain and the compression garment, the timing of check-ups and the findings that should be reported without waiting are explained.¹⁰

How do you prepare for surgery?

Smoking and nicotine: Smoking is a risk factor for wound healing problems after surgery. Direct surgical data on nicotine products other than cigarettes are scarcer. The practice reference of the American Society of Plastic Surgeons notes a lack of clinical data on e-cigarette use and surgical risk, but states that because nicotine is known to reduce blood flow, e-cigarettes and other nicotine products are regarded as a potential risk factor.¹¹ Stopping smoking, vaping and other nicotine-containing products at least 1 month before the operation, and not using them after surgery until healing is complete, is therefore advised. The studies below concern smoking cessation; their results do not establish the same reduction in risk for every nicotine product. A review pooling 6 randomised and 15 observational studies showed that every week of abstinence added benefit, and that studies with at least 4 weeks of abstinence produced markedly better results than shorter ones.¹² A study appraising systematic reviews together reported that cessation interventions beginning at least 4 weeks before surgery and combining multiple behavioural support sessions with pharmacotherapy reduced complications. The same study notes that interventions with only one component, even when started more than 4 weeks before surgery, raise quit rates without reducing complications.¹³ Shorter intervals are not useless either: in a meta-analysis of 55 studies covering adults undergoing a range of operations, the risk of pulmonary complications was 27 per cent lower in relative terms among those who stopped at least 2 weeks before surgery, and 29 per cent lower among those who stopped at least 4 weeks before, compared with those who continued smoking.¹⁴ The benefit therefore grows as the interval lengthens; being late does not make stopping pointless. The interval applied and the nicotine policy can vary from surgeon to surgeon.

Coexisting illness: Diabetes and blood pressure are expected to be under control before surgery. Where there is an active infection in the body, surgery is postponed.

Medication: Blood thinners and some herbal products can increase bleeding. Every medicine and supplement you take needs to be declared. Prescribed medication should not be stopped on your own decision.

Tests and anaesthetic assessment: The tests required are determined by general health and by the anaesthetic assessment.¹⁵ Any previous problem with anaesthesia or drug allergy should be declared. The instructions given about fasting and about how to take medication on the day of surgery are followed.

Home and transport: Someone is arranged to accompany you home on discharge.¹⁵ The timing of check-ups, the help you may need in the first days and the plan for time off work are organised beforehand. Follow the surgical team's guidance on preparing the operation area; do not shave or prepare the incision area at home on your own initiative.

Because the arms will be used less in the first days, clothing that is easy to put on, arranging frequently used items within reach, and help with tasks such as washing hair are planned beforehand. Not every task involving the arms needs to be postponed; the movement plan given by the surgical team is followed.

What is recovery like?

Swelling and bruising can occur after surgery; the first appearance is not the final result.³ The first check-up takes place within the first week. 2 weeks are expected for stitch removal. The state of the incision and the dressing is assessed at check-ups; stitches having been removed does not on its own mean that all movements are permitted.

7-10 days are expected for bruising to settle and 2-4 weeks for marked oedema to subside. Residual slight swelling can last 3-4 months. The shape becomes assessable within 2-4 months. These are separate steps; slight swelling can continue while the shape of the arm is already assessable.

What matters is that the swelling is decreasing. A fullness that is new, grows rapidly or comes with marked pain is not left to wait because the approved healing interval has not elapsed. Fluid collection, bleeding and lymphatic problems are not the same diagnosis as ordinary oedema.⁶ Where swelling is prolonged, the cause is assessed by examination; not every prolonged swelling is called lasting lymphoedema.

Returning to work, using the arm under load, returning to sport and the maturing of the scars are not completed at the same time. At a check-up, not only the appearance but the tension a movement creates on the incision line and how daily tasks are being managed are assessed. The scar changing over a longer period does not mean that a return to daily life has to wait until the scar has matured completely.

What to pay attention to after surgery

The following is a general framework. Where the instructions you were given differ, your surgeon's instructions apply.

Drain and dressing: A drain is usually used; it helps to remove blood and tissue fluid.¹⁰ When it is removed is determined by the check-up findings. The dressing is continued according to your surgeon's advice until the wound has healed. The drain is not tugged, is not removed on your own initiative, and its connections are not altered outside the instructions given. The drain coming out does not mean that care of the incision has ended.

Compression garment: It is worn for 2-4 weeks, including at night. The arrangements for putting it on, taking it off and cleaning it are determined by the surgical team's instructions. The garment is not tightened in the belief that firmer use will give a better result. Where there is new numbness, marked pain or a change in colour in the fingers or the hand, the team is informed. Finishing the period of compression garment use is not permission to lift heavy weights or to return to sport.

Sleeping: Rest with the head elevated. Your surgeon decides how long that position and the avoidance of physical strain are continued. A sleeping position that puts no pressure on the incision is preferred. Returning to sleeping on the side or front is assessed according to the state of the incision and the swelling.

Lying, specific to the arms: The arms are supported so that they stay elevated. Elevating the head and supporting the arms are parts of the same plan for lying. Keeping the arms elevated does not mean stretching them upwards and putting the incision line under tension. The placing of supports and the position of the arm are arranged as shown by the surgical team. Where a tummy tuck or a back lift has also been carried out, a plan for lying that takes all the incision lines into account is followed.

Cold application: Cold is applied to the operated area without pressing on it. The form and duration of the application are determined by your surgeon's instructions.

Showering, wound and dressings: When you may shower depends on the dressing used. If there is a skin incision, once allowed you can shower without rubbing the wound and pat the area dry gently. Baths, swimming pools and the sea wait until the wound has closed completely.

Shower timetable: A return to showering is assessed within 1-2 weeks, according to the state of the wound and the dressing. Removal of the drain is not by itself permission to shower. The care instructions given for the inner side of the arm and, where present, the incision extending into the armpit are followed; crusts are not picked off.

Movement: Strain such as bending the head down, straining and heavy lifting is limited in the early period. Movements that stretch or rub the incision area are avoided. Even if you feel well, do not return to strenuous activity suddenly. Activity and rest through the day are organised according to the plan given on discharge.

Arm movements: These are limited in the early period; afterwards they are freed to the extent your surgeon allows, according to the course of healing. Closure of the incision line, the course of the swelling, and the pain and tension a movement produces are assessed together. Dressing, reaching up, pushing a door and carrying a load do not create the same strain. A movement that can be done without pain does not mean it can also be done with a load added. Rather than a fixed number of weeks, the check-up findings and the task to be done are taken as the guide; do not impose extra restrictions of your own in order to keep the arm motionless all day.

Pain: There can be tenderness, tightness and pain in the arms.¹⁶ The painkillers given are used as instructed. Pain that markedly prevents walking or changing position is reported to the team; rather than abandoning the movement plan altogether, pain control and the need for help are assessed. No new painkiller or additional medicine is started on your own decision.

Returning to work and sport: 2-4 weeks are set aside for a return to work. In jobs involving heavy lifting or constant strain on the arm area, suitability is assessed separately. A return to sport is planned in stages within 4-6 weeks; approval from your doctor is awaited before moving on to movements that strain the arm area. 6-8 weeks are expected for a full return to daily life. Being able to carry out a task at home comfortably does not mean that all physical activities are permitted.

Driving: A return can be assessed within 2-4 weeks. There must be no effect of medication reducing attention, no dizziness and no pain preventing movement. You need to be able to sit with a seat belt, to check your surroundings and to brake suddenly or manoeuvre comfortably. Turning the wheel and using the arms against an unexpected movement are part of that assessment as well. Where these conditions are not met, driving is not undertaken even if the timetable has run its course. Someone accompanies you home on discharge.

Sexual activity: A return can be assessed once everyday movements no longer cause marked pain and you feel comfortable. Pressure on the arm area, movements that stretch the incision line, and marked straining are avoided. Rather than a fixed day, the course of healing and the surgeon's advice are taken as the guide.

Smoking: Smoking impairs wound healing after surgery as well; cigarettes and nicotine products should be avoided until healing is complete.

Findings that are normal: Bruising, swelling, tightness and altered sensation around the incision can occur.¹⁶ What matters is that the findings are decreasing. Swelling that grows rapidly, is painful, or gathers markedly on one side should not be attributed to the healing period given alone. Where there is a new fullness, no attempt is made to press on the area to drain fluid.

How are early walking and prevention of clots planned?

Walking is begun 6-8 hours after leaving the operation, on the assessment of the healthcare team. This early walking is not the same thing as a return to sport. The need for rest does not mean remaining motionless in bed throughout the day; the movement plan given by your surgeon is a basic part of care. Help is taken at the outset; where there is dizziness or marked weakness, you do not push on and the team is informed.

The risk of clots is assessed routinely before surgery. A compression stocking is put on before the operation; after surgery it is removed by the surgeon's decision once you have begun to walk comfortably. The compression garment used for the arm and a compression stocking are not products used for the same purpose and are not used in place of one another.

Where operations will be long, or where there are risk factors creating a predisposition to clots, prevention with medication is assessed. Which measures are applied together is determined according to the person's risk. Following the movement plan should not be neglected; equally, walking or any other measure should not be thought of as removing the possibility of a clot altogether.

How do the scars change?

A scar remains after an arm lift; its length and position depend on the operative plan.³⁴ Placing it on the inner side aims to make it less noticeable at first glance from the front and the back. It can be visible because of how open the clothing is and how the arm is held. The choice of incision line and the final quality of the scar are therefore assessed separately.

6 months to 1 year is expected for a scar to mature. A scar can be prominent, raised or wide; hypertrophic scarring and the need for scar revision have been reported in surgical series.⁶ Planning it on the inner side does not mean that these problems will not occur. The scar is not expected to be erased, or to fade to the same degree in everyone.⁴

Scar care: Silicone gel or a silicone sheet is used after the wound has closed and your surgeon considers it suitable. No product is applied on your own initiative to an incision that is open, discharging or not yet healed. Which form of product is used, when and how, is determined by the check-up findings. Where irritation develops, an assessment by your doctor is sought regarding use of the product.

Silicone may help a scar to become softer and less red; it is not applied to an open or weeping wound.¹⁷ This advice concerns the care of the incision scar. Using more product, or applying force to the incision line without your doctor advising it, does not take the place of care. After the stitches are removed, checks on the scar are continued for widening and indentation.

Risks and complications

Risks are addressed separately as wound, fluid collection, sensory and shape problems.⁶ The order below is not an order of frequency. A risk existing does not mean it will occur in everyone, just as its not being seen in a small series does not remove the possibility.

A systematic review and meta-analysis combining 1,578 people from 29 observational studies assessed the complications of arm lift surgery.¹⁸ The values below are pooled rates; the range given in brackets after each rate is the 95 per cent confidence interval for that outcome.

Outcomes relating to the scar and the shape: aberrant scarring 9.9 per cent (6.1-15.6), persistent sagging or recurrence 7.79 per cent (4.8-12.35).¹⁸ Outcomes relating to the wound and to fluid: wound dehiscence 6.81 per cent (4.63-9.90), seroma 5.91 per cent (3.75-9.25), infection 3.64 per cent (2.38-5.53), skin loss or delayed healing 2.27 per cent (1.37-3.74), haematoma 2.06 per cent (1.38-3.06).¹⁸ Outcomes relating to nerves and lymphatics: nerve-related complications 2.47 per cent (1.45-4.18), lymphoedema or lymphocele 2.46 per cent (1.55-3.88).¹⁸ Further intervention: for aesthetic purposes 7.46 per cent (5.05-10.88), for non-aesthetic reasons 1.62 per cent (1.00-2.61).¹⁸

The limits of these values need to be known when reading them. All the studies entering the review were observational; the abstract does not give the patient denominator for each outcome, the follow-up periods, or the spread between studies.¹⁸ Lymphoedema and lymphocele were counted under a single heading, so the 2.46 per cent there is not a rate for lasting lymphoedema.¹⁸ These pooled values cannot be applied directly to one person's risk. Nor is a total complication risk calculated by adding the rates of different events together.

Bleeding, seroma and wound problems

A haematoma is a collection of blood and a seroma a collection of tissue fluid. Bleeding, seroma, infection and wound dehiscence have been reported after arm lift surgery.⁶ Loss of skin or fatty tissue and problems related to the stitches can also develop.¹⁶ Where there is increasing pain, a new fullness, spreading redness or discharge, a check-up is not waited for.

In assessing wound healing, skin quality, weight, the tension on the incision line, coexisting illnesses and factors that can delay healing are considered together. Where a problem develops, the dressing plan and the need for further intervention are determined by examination. The use of a drain or a compression garment does not mean that a new swelling does not need assessing.

Are swelling, lymphoedema and lymphocele the same thing?

Ordinary surgical swelling and a lymphatic complication should not be assessed under the same heading. Lymphoedema has been reported after brachioplasty; some research, however, addresses collections of lymphatic fluid and different definitions of swelling together.⁸⁶ A lymphocele describes a collection of lymph fluid in a limited area; lymphoedema describes tissue swelling related to a disturbance in lymphatic transport. Either being reported does not on its own give a rate for lifelong lasting lymphoedema.

In a prospective series in which 12 women with marked weight loss after bariatric surgery were operated on with a particular technique involving a medial incision, superficial undermining and liposuction of the posterior arm, follow-up was carried out for 12 months.¹⁹ Forearm volume and skin sensory measurements were unchanged in all participants, and the normal linear pattern of lymphatic flow was preserved on lymphography.¹⁹ In the same series, a small wound dehiscence was reported in 1 person and hypertrophic scarring in 2.¹⁹ The favourable functional measurements are the result of this small, selected group; they are not a promise that no lymphatic problem will occur with every technique or in every person.

No separate percentage for lasting lymphoedema is given in this article. The 2.46 per cent figure in the meta-analysis counts lymphoedema and lymphocele together; the brachioplasty data accessed do not support a rate for lasting lymphoedema separated from transient swelling.¹⁸⁸⁶ Where swelling is not settling or is increasing again, the cause is assessed; the interval given by your surgeon for residual swelling is not used to leave new findings waiting.

Altered sensation and nerve injury

There can be numbness or altered sensation around the incision, and altered sensation and pain can be prolonged.¹⁶ The 2.47 per cent above is a combined outcome for nerve-related complications; it is not a rate for lasting loss of sensation or for the particular nerve injuries described here.¹⁸ The medial antebrachial cutaneous nerve is related to sensation in the skin on the inner side of the forearm. Injury to this nerve in the operated area, or its entrapment by a suture, can cause pain and loss of sensation.²⁰ Not every change in sensation means lasting damage to that nerve.

In 1 of 2 published cases, presentation 17 months after surgery was reported because of pain from a neuroma of the medial brachial cutaneous nerve.²⁰ In the other, entrapment of the medial antebrachial cutaneous nerve by a suture was identified; at the assessment 6 months after release, the pain had decreased and sensation had returned only partly.²⁰ These cases do not give a general frequency and do not show that every numbness will follow the same course. They do explain, however, that prolonged or spreading pain should not be taken as ordinary healing alone.

New loss of sensation, increasing burning or marked pain on touch is reported to the team. Where there is loss of strength in the hand or new impairment in the use of the arm, the date given for a check-up is not waited for. At the check-up, the distribution of the complaint and a nerve examination are assessed; further investigation may be carried out where needed.²⁰

Problems relating to shape, symmetry and the scar

Further correction may be needed because of remaining excess skin, recurrent laxity, asymmetry, or widening, indentation or thickening of the scar.⁶ The appearance during the first period of swelling is not on its own assessed as lasting asymmetry; the course of the change is followed at check-ups. Even where the position of the scar has been accepted, the quality of its healing is assessed separately.

The decision on further surgery is made according to what problem remains and the course of healing. Correcting a scar or the shape for aesthetic purposes and a further intervention for a medical reason such as bleeding are not the same outcome measure.⁶ A figure given for one of these is not used as the frequency of the other or of all further procedures.

Clots and general surgical risks

Blood clots: A clot forming in the leg veins and travelling to the lungs is serious. One-sided leg pain and swelling, sudden shortness of breath or chest pain need urgent assessment.

The approach to preventing clots is decided according to the person's risk and the operation planned. The measures to be used are explained in the discharge and care plan. No blood thinner is started without being prescribed, and existing treatment is not altered on the person's own decision.

Problems related to anaesthesia are also assessed.¹⁶ Any previous problem with anaesthesia and new changes in health are declared before surgery. Early walking, stockings and, where needed, prevention with medication are applied together; their having been used does not make new emergency symptoms unimportant.

Risks relating to added procedures

Clinical studies exist on carrying out brachioplasty together with liposuction; the results are limited to the method used and the patient group.⁸⁹ No significant difference being found between groups in one study does not mean that the risk of all combined procedures is equal.⁸ Nor is data from an operation other than an arm lift presented as the complication percentage of this one. The studies assessed different applications of liposuction and different patient groups; their findings should not be combined into a single direction of risk for all applications of liposuction.⁸⁹ The decisions on the incision and on liposuction are determined at examination.

Where a procedure is added in another area, the care of the incision, lying down, getting up and the need for help are tied to a shared plan. Arm movement being permitted does not mean that another incision line can be loaded. How each movement is to be carried out is explained before discharge, taking all the operated areas into account.

Does the result change over time?

The appearance of the arm can change again with changes in weight and with ageing.⁴ No interval can be given after which the result of the operation will certainly be lost, or will remain the same for life. Keeping weight stable does not stop all the changes in the tissues over time.⁴

Excess skin becoming marked again, a scar widening, and correcting an area left from the first operation are different reasons.⁶ Where a further intervention is considered, which problem is to be addressed is explained. The decision is not made on the time elapsed since surgery, or on another person's result, alone.

What can be expected from the result?

The change expected is a reduction in the excess skin of the upper arm and an adjustment of the fatty tissue according to the plan.¹ It should be known that a permanent incision scar will form in return.⁴ It is not the aim for every arm to look equally slim, to follow the same line, or to be entirely symmetrical.

Planning the scar on the inner side aims to make it less visible; it is not guaranteed to be covered entirely in open clothing. In the discussion of expectations, not only the shape seen with the arms down but the visibility of the scar in movement is assessed. Whether the person accepts that scar matters as much as the change in their excess skin.

The same interval being given for returning to work and for driving does not mean that permission is given on the same conditions. The end of compression garment use does not automatically free the arm for use under load either. A full return to daily life, assessment of the shape and maturation of the scar are separate processes; a decision on the final result is not made from an early appearance.

When should you contact a doctor?

In the situations below, the planned check-up is not waited for.

• Rapidly increasing swelling, new tightness or marked one-sided fullness in the arm or the hand
• Pain that increases rather than settling, or becomes marked despite the pain treatment given
• Fever, spreading redness or discharge from the incision line
• The wound opening or bleeding that does not stop
• New loss of sensation, weakness or spreading burning in the hand or the arm
• Newly developing marked pallor, darkening or blistering of the skin
• The drain coming out of place, or increasing swelling in the arm while the drain output changes
• Steadily increasing pain or pressure under the compression garment

These findings may require assessment for bleeding, fluid collection, infection, the circulation to the tissue or problems with a nerve.¹⁶⁶²⁰ Rather than trying to work out the cause of a new swelling at home, report it to the surgical team. The drain having been removed, or the check on the stitches having been completed, is not a reason to leave new findings.

One-sided leg pain and swelling, sudden shortness of breath or chest pain are emergencies. Where there is a sudden breathing problem in particular, urgent assessment should not be delayed while trying to reach your doctor. That the movement plan has been followed or a preventive measure used does not lessen the importance of these symptoms.

About the numbers in this article

The intervals given for the operation, hospital stay, stitches, compression garment, showering and return to activity, together with those for bruising, swelling, shape and the scar, are the approved clinical framework. No fixed number of weeks is given for arm movements. Being able to take a short walk and being able to use the arm under load are not the same decision.

The pooled percentages in the risk section come from a meta-analysis combining 29 observational studies; none of them gives one person's risk, and the abstract does not include the denominator for each outcome or the follow-up period.¹⁸ The favourable 12-month lymphatic and sensory measurements in the research belong to 12 women operated on with a particular technique; they are not an estimate of frequency for everyone considering an arm lift.¹⁹ The intervals to presentation and follow-up in the nerve cases are likewise not used as a healing timetable.²⁰ Lymphoedema, lymphocele, seroma and ordinary oedema are not added together as the same event; transient numbness and lasting nerve damage are not written in place of one another either.

The shared paragraph on smoking cessation reports research covering a range of operations. The relative risk reduction is not an absolute complication rate specific to arm lift surgery, nor does it mean that every nicotine product has been studied separately with the same effect.¹²¹³¹⁴

References

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