Reverse shoulder replacement: who it is for, how it differs from a standard replacement, and recovery

A reverse shoulder replacement swaps the positions of the ball and socket of the shoulder joint, so that the large deltoid muscle over the top of the shoulder can lift the arm. It is designed for shoulders where the rotator cuff tendons are badly torn or worn out, which a standard replacement relies on to work well.

It is usually considered for people with painful arthritis and a damaged rotator cuff, for large rotator cuff tears that cannot be repaired, for some complex fractures in older people, and when an earlier replacement needs redoing. Its main aim is to relieve pain. It often improves the ability to lift the arm as well, although some movements, such as reaching behind the back, may stay limited.

In the UK, reverse replacements are now the most common type of shoulder replacement. This guide explains who they suit, how they differ from a standard replacement, what the risks are, what recovery involves and what the UK's National Joint Registry shows about results.

How a normal shoulder works

The shoulder is a ball and socket joint. The ball sits at the top of the upper arm bone (the humerus) and rests against a shallow socket on the shoulder blade (the glenoid). The rotator cuff, a group of four tendons around the ball, keeps it centred in the socket so that the deltoid muscle can lift the arm smoothly.

Two things commonly go wrong. The smooth cartilage on the joint surfaces wears away, which is arthritis. Or the rotator cuff tears and, over time, stops holding the ball in place. When both happen together, the ball rides upwards, the joint wears in an abnormal way and lifting the arm becomes painful and weak. This combination is called cuff tear arthropathy. Our guides to shoulder arthritis and rotator cuff tears explain each problem in more detail.

How a reverse replacement differs from a standard replacement

A standard (anatomic) shoulder replacement copies the normal shape of the joint. A metal ball replaces the top of the humerus and a plastic surface lines the socket. It works well for arthritis when the rotator cuff is healthy, because the cuff still keeps the new ball centred.

A reverse shoulder replacement turns that arrangement around. A metal ball is fixed to the shoulder blade where the socket was, and a plastic cup is fixed to the top of the humerus. This moves the centre of the joint inwards and lowers the arm slightly, which tightens the deltoid muscle so it can lift the arm without help from the rotator cuff. The design was developed in France in the 1980s and is often called the Grammont design after the surgeon who introduced it (Boileau et al, Journal of Shoulder and Elbow Surgery 2005).

The choice between the two depends mainly on the rotator cuff. UK guidance from the British Elbow and Shoulder Society advises a standard replacement where the cuff is intact, with the reverse design reserved for cuff tear arthropathy or for older people whose cuff is torn or not working well (Thomas et al, BESS and BOA patient care pathway, Shoulder and Elbow 2016). NICE similarly recommends a standard replacement for osteoarthritis with an intact cuff, where there is enough bone in the socket (NICE guideline NG157).

Who a reverse replacement is for

Mr Chambler will usually discuss a reverse replacement when:

• arthritis and a badly damaged rotator cuff are causing pain that disturbs sleep and limits daily life (cuff tear arthropathy)
• a large rotator cuff tear cannot be repaired and the arm can no longer be lifted properly (tears that can be repaired are covered on the rotator cuff repair page)
• arthritis has worn away bone in the socket, making a standard replacement less reliable
• a complex break at the top of the arm bone in an older person is unlikely to heal well
• an earlier shoulder replacement has failed and needs redoing.

The UK registry shows how this works in practice. Of all primary shoulder replacements recorded between 2012 and 2025, around 90% of those done for cuff tear arthropathy were reverse replacements, as were 68% of those done after a fracture and 39% of those done for osteoarthritis (National Joint Registry 23rd Annual Report 2026, shoulders).

It is not usually the first treatment. Most people try pain relief, physiotherapy, activity changes and often a guided injection with the radiology team first, and where the joint surface is still in good condition, keyhole shoulder surgery may be an option. For many people with a painful shoulder, a replacement is never needed. The shoulder replacement page sets out these other options alongside the operation.

How common reverse replacements have become

The reverse design has become the main shoulder replacement in the UK. In 2012 it made up 24% of shoulder replacements recorded by the National Joint Registry. By 2025 it was 74%, with 8,457 of the 11,365 shoulder replacements recorded that year (NJR 2026). Over the same period, standard replacements fell to 17%.

That shift reflects both the number of older people with cuff-related arthritis and growing experience with the reverse design. It does not mean a reverse replacement is right for everyone. Where the rotator cuff is healthy, a standard replacement often gives better movement. A review of 18 studies found standard replacements gave a better range of movement, with similar pain scores, complications and revisions (Shah et al, Bone and Joint Open 2026). An NHS trial, RAPSODI-UK, is now comparing the two designs directly in people aged 60 and over, and Mr Chambler is taking part in it at Sulis Hospital Bath (Rodrick et al, BMJ Open 2025).

Pain relief is the main aim, and some movements stay limited

People sometimes expect a new shoulder to work like the one they had at 40. A reverse replacement can make a large difference to pain and to the ability to lift the arm, but it is designed to work differently from a natural shoulder, and some movements usually stay limited.

The movement most often affected is turning the arm inwards, such as reaching behind your back to tuck in a shirt or fasten a bra. The surgeons who developed the design noted that this is rarely restored, and that turning the arm outwards often stays limited too (Boileau et al 2005). Many people adapt with small changes to how they dress or wash.

Lifting the arm forwards usually improves. In a study of 417 people under 65, the arm could be lifted forwards to an average of 121 degrees, a little above shoulder height (Chelli et al, JSES Open Access 2019). In a long-term Swiss study, average forward lifting improved from 53 to 101 degrees and stayed improved at an average of 16 years (Gerber et al, Journal of Shoulder and Elbow Surgery 2018).

Knowing this in advance helps you decide whether the trade suits you. For someone kept awake every night by a painful, weak shoulder, it often does. For someone with a painful but still strong shoulder and a healthy cuff, a standard replacement or a different treatment may suit better.

What the results show

The National Joint Registry collects the Oxford Shoulder Score, a questionnaire scored from 0 to 48, where higher is better. For people having a planned reverse replacement, the average score rose from 15.7 before surgery to 35.7 six months afterwards. For standard replacements it rose from 17.8 to 39.0. The registry describes the improvement as broadly similar for the two designs (NJR 2026).

The registry also tracks how often replacements need redoing (revision). For planned reverse replacements, 3.1% had been revised at five years and 4.2% at ten years. For standard replacements the figures were 3.6% and 6.5% (NJR 2026).

Revision rates do not tell the whole story. A UK study of almost 22,000 registry patients found that 27% of people with a reverse replacement had an unsatisfactory Oxford score, but few of them had been revised, partly because a reverse replacement is harder to redo and is often already the fallback option (O'Malley et al, PLoS One 2025). In other words, most people do well, but a meaningful minority are left with more pain or less function than they hoped for. Mr Chambler will talk through what is realistic for your shoulder.

Risks of a reverse shoulder replacement

No operation is risk-free. Rates vary with the implant design, the reason for surgery and the person's general health. Large reviews of studies published since 2010 report these rates after a reverse replacement (Shah et al, JSES International 2020; Shah et al, JSES International 2021):

• Infection: 2.4%
• Dislocation or instability: 1.3% to 4.0%, depending on design
• Stress fracture of the shoulder blade (acromion): 2.6%
• Fracture of the arm bone during or after surgery: 1.8% during, 1.2% after
• Loosening of the implant: 1.4% to 2.3%
• Nerve injury: 0.1% to 0.9%, depending on design
• Wear of bone on the shoulder blade seen on X-ray (scapular notching): 12% to 43%, depending on design

There are also the risks of any anaesthetic and of blood clots. Stress fractures of the shoulder blade are particular to the reverse design, and are more common in people with inflammatory arthritis such as rheumatoid (King et al, Bone and Joint Journal 2019). Results after a fracture are less predictable than after a planned operation (Paras et al, Journal of Shoulder and Elbow Surgery 2022).

Mr Chambler goes through the risks that apply to you, and the implant he would use, before you decide anything. You sign consent only when you are ready.

If you are trying to understand your shoulder pain and would like a clear view of which treatments might suit your shoulder, an assessment with Mr Chambler will give you that. It is an assessment, not a commitment to surgery. You can book a consultation here.

What happens on the day

The operation is done under a general anaesthetic, usually with a nerve block that numbs the arm for some hours afterwards. It typically takes one to two hours. Through an incision at the front or top of the shoulder, the worn joint surfaces are removed and the new components are fixed in place.

NICE recommends that rehabilitation starts on the day of surgery if possible, and within 24 hours (NICE NG157). A physiotherapist will show you how to manage the sling and keep your hand, wrist and elbow moving. Many people go home after one or two nights.

Recovery after a reverse shoulder replacement

Recovery takes months rather than weeks, and it varies from person to person. A typical pattern, based on NHS patient information (University Hospitals Birmingham, reverse shoulder replacement leaflet, 2025; Royal Orthopaedic Hospital, reverse shoulder replacement), looks like this:

• First few weeks: Sling day and night. Gentle hand, wrist and elbow movement and early shoulder exercises. Pain relief as needed.
• Around 6 weeks: The sling comes off for most people. Outpatient physiotherapy builds movement. Driving again for many people from around six weeks, once out of the sling.
• 6 to 12 weeks: Light daily tasks and desk work. Manual work may take up to 12 weeks or longer.
• 4 to 6 months: Significant improvement in pain and use for most people.
• Up to a year and beyond: Strength and movement keep improving for at least 12 months.

Mr Chambler's physiotherapists work to his published reverse shoulder replacement rehabilitation guidelines, and there is more practical detail in the total shoulder replacement information leaflet. Heavy lifting and some overhead sports may stay restricted in the long term to protect the replacement. Your own plan is agreed with you.

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Age and a reverse replacement

Reverse replacements are mostly done in people in their seventies and older, but they are also used in younger people when the shoulder leaves no good alternative. In a review of studies in people under 65 (average age 55), 13% had a complication and 8% had needed a revision over two to eight years (Johri et al, Shoulder and Elbow 2026). Younger, more active people put more demand on a replacement over more years, which is why the decision takes extra care.

In my experience: Mr Andrew Chambler
The question I ask first is whether the rotator cuff is still doing its job. If it is, and there is enough bone in the socket, a standard replacement usually gives the most natural movement. If the cuff has gone, a standard replacement will not stay centred, and that is where the reverse design comes into its own. I spend time explaining this in a consultation. For most of my patients the reason for surgery is pain, often pain at night that has gone on for years, and a reverse replacement is very good at helping with that. I also make sure people know that reaching behind the back is often still awkward afterwards, so the result matches what they were expecting.

Questions to ask at your appointment

• Is my rotator cuff working, and which type of replacement would you recommend?
• What would a replacement realistically do for my pain and movement?
• What are the risks for me, given my age and health?
• Which implant would you use, and what does the registry show for it?
• Are there other treatments I should try first?

Getting assessed in Bath

If shoulder pain is affecting your sleep and daily life, or you have been told you may need a replacement, an assessment will explain what is causing the problem and what your options are, including those that do not involve surgery. Mr Chambler examines the shoulder, reviews your X-rays and can arrange a CT or MRI scan with the radiology team where it would help with planning.

Mr Chambler performs shoulder replacements at Sulis Hospital Bath in Peasedown St John, about 15 minutes from Bath city centre and 25 minutes from central Bristol by car, with free parking, and at Bath Clinic on Claverton Down. He also consults at St Joseph's Hospital in Newport for patients in South Wales. New patients are usually seen within one to two weeks, or sooner. The shoulder replacement in Bath page explains the operation, recovery and costs step by step. The treatments page covers the main operations Mr Chambler performs, with recovery times and costs.

A new self-pay consultation is £250 and follow-up appointments are £150. Your self-pay quote for surgery is confirmed in writing after your consultation, once the type of surgery, if needed, is agreed. Mr Chambler is recognised by Bupa, AXA Health, Aviva, Vitality and WPA to treat their members. Please check your cover with your insurer before booking, as most will ask for a GP referral. Self-paying patients are welcome.

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Book a consultation or call 01761 422222.

Frequently asked questions

What is the difference between a reverse and a normal shoulder replacement? A standard replacement copies the shape of the natural joint and relies on a healthy rotator cuff. A reverse replacement swaps the ball and socket so the deltoid muscle can lift the arm, which makes it suitable when the rotator cuff is badly damaged.

How long does a reverse shoulder replacement last? In UK registry data, about 4% of planned reverse replacements had been revised at ten years. Most last well beyond that, although the results for each implant and each person vary.

How long is recovery after a reverse shoulder replacement? Most people are in a sling for the first few weeks, drive again from around six weeks and notice significant improvement by four to six months. Strength and movement keep improving for at least a year.

Will I be able to lift my arm above my head? Many people can lift the arm forwards to around shoulder height or a little above after a reverse replacement, which is often a large improvement. Reaching behind the back usually stays more limited.

Is a reverse shoulder replacement a major operation? Yes. It is done under a general anaesthetic, usually with a hospital stay of one or two nights, and recovery takes several months. The risks are discussed in full before you decide.

Can I have a reverse shoulder replacement if I am under 65? Sometimes, where the shoulder leaves no good alternative. Younger people put more demand on a replacement over more years, so the decision is weighed carefully against other options.

Mr Andrew Chambler is a consultant orthopaedic surgeon specialising in shoulder and elbow surgery. He has been a consultant since 2003 and operates at Sulis Hospital Bath and Bath Clinic. Read more about Mr Chambler or book a consultation.