Capsular release is considered when frozen shoulder has not responded to physiotherapy, injections, or hydrodilatation. This guide will help you prepare and know what to expect.
ℹ️ This appointment takes place 2–4 weeks before surgery. Your clinical team will check you are fit for the procedure and answer any questions.
You will meet the nursing and anaesthetic team. Baseline checks are carried out and your current medications reviewed.
Routine checks to ensure you are fit for anaesthesia.
Blood thinners such as warfarin, apixaban, or aspirin may need to be paused before surgery.
Capsular release is usually performed under general anaesthesia, often combined with an interscalene nerve block for post-operative pain relief.
Physiotherapy must be arranged to start promptly after surgery - this is essential for a successful outcome.
If you have diabetes, blood sugar control before surgery is important. Your surgeon may request HbA1c results and liaise with your GP or diabetic team.
ℹ️ You will be given a specific arrival time. Have no food from 2am on the day of surgery; you may drink clear water until 6am. Bring your medication list and any documents sent by the hospital.
You will be admitted to the ward or day surgery unit, change into a gown, and be seen by the nursing, anaesthetic, and surgical teams before theatre.
Your surgeon will confirm the procedure, mark the operative side, and you will sign a consent form before going to theatre.
You will meet the anaesthetist in the anaesthetic room. Once anaesthesia is established, the procedure will begin.
After surgery you will wake in the recovery room where nurses monitor your vital signs until you are stable and comfortable.
Most patients having arthroscopic or day-case procedures go home on the day of surgery. Those having joint replacement typically stay 1–2 nights. Before discharge, the team will check your pain is controlled, give you wound care instructions, and confirm your follow-up appointment.
You will be given oral pain relief before discharge. Take it regularly for the first 48 hours rather than waiting until pain is severe.
A nurse will check the wound before you leave and explain how to keep it clean and dry.
You will receive a letter for your GP and details of your next outpatient appointment - usually at 2 weeks for a wound check.
Arrange for a family member or friend to collect you. You must not drive on the day of surgery if you have had a general anaesthetic or sedation.
⚠️ Important: Physiotherapy must begin very early after capsular release - ideally within 24 hours. Without prompt mobilisation, the shoulder may stiffen again. Confirm your physiotherapy arrangements before your surgery date.
Avoid getting the wound wet until it is fully healed - usually 10–14 days. Use a waterproof cover or cling film when showering.
Do not wait until pain is severe before taking medication. Regular simple analgesia (paracetamol, ibuprofen if appropriate) is more effective.
This is usually 2 weeks after surgery. Sutures or clips will be removed if used.
Seek urgent advice if you develop increasing redness, warmth, swelling, discharge from the wound, or a temperature above 38°C - these may indicate infection.
Blood tests, ECG, medication review, and physiotherapy referral arranged.
Performed under general anaesthesia. The thickened capsule is released arthroscopically. Most patients go home the same day.
Passive stretching and pendulum exercises begin within 24 hours to maintain the movement gained in surgery.
Progressive range of movement and strengthening exercises under physiotherapy supervision.
Most patients recover full or near-full range of movement within 3–6 months of surgery.
A sling is usually worn for comfort for the first 1–2 days only. Early movement is encouraged, so you should not remain in a sling for long.
Pendulum and passive exercises typically begin on the day after surgery. Your physiotherapist will guide you through the programme.
Capsular release is usually a day-case procedure. Most patients go home a few hours after surgery.
Some recurrence of stiffness is possible. Consistent physiotherapy exercise is the most important factor in preventing this.
A week-by-week guide to recovery. Individual timelines vary, always follow your surgical team.
The aim of arthroscopic capsular release is to restore shoulder movement by dividing the contracted joint capsule. Most patients achieve significant improvement in range of movement within weeks of surgery, allowing engagement with physiotherapy that was previously impossible.
The shoulder joint is distended with fluid and inspected with the arthroscope. The contracted capsule - particularly the rotator interval, the anterior capsule, and the inferior capsule - is divided using an arthroscopic radiofrequency probe or scissors. An examination under anaesthesia (EUA) is performed at the start of the procedure to assess movement under anaesthesia before release, and again after release to confirm improvement. The procedure is performed under general anaesthetic and usually takes 30-45 minutes.
The mainstay of non-operative management. May resolve symptoms over 1-3 years in many patients. Less effective in diabetic frozen shoulder.
Intra-articular steroid injection provides pain relief and may accelerate recovery through the freezing stage. Can be repeated.
Injection of a large volume of fluid under imaging guidance to stretch the contracted capsule. An effective, less invasive alternative to surgical release. Usually performed as a first surgical intervention before capsular release.
The natural history of frozen shoulder is eventual resolution in most patients, though this may take 1-3 years and full movement may not be recovered.
The axillary nerve and brachial plexus are in close proximity. Injury is rare but has been reported. Usually a neurapraxia that recovers fully.
Rare complication of manipulation under anaesthesia, particularly in osteoporotic bone. The arthroscopic technique reduces but does not eliminate this risk.
Superficial or deep joint infection. Deep infection may require further surgery.
Capsular release may not fully resolve stiffness, particularly in diabetic frozen shoulder. Further intervention may be required.
Rare complication of the release or manipulation. Usually small and does not require immediate repair.
Expected and managed with regular analgesia. An interscalene nerve block may be used.
Normal after arthroscopic shoulder surgery. Settles within 1-2 weeks.
Expected to resolve within 18-24 hours.
Some limitation of movement may persist despite surgery. Intensive physiotherapy starting the day after surgery is essential to maximise the benefit of the release.
Frozen shoulder will resolve naturally in the majority of patients over 1-3 years, though complete recovery of movement is not guaranteed. Surgery is appropriate when non-operative measures including physiotherapy and injection have failed to provide adequate relief after 6-12 months.
Plain-English answers to the things people most often ask, drawn from real patient questions and grounded in published guidance. Tap a question to open it.
Yes. A frozen shoulder is usually self-limiting: it tends to improve and resolve on its own, although this can take a long time. It moves through a painful "freezing" phase, a stiff "frozen" phase, and a gradual "thawing" phase, commonly over one to three years.
Treatment aims to ease pain and speed the return of movement rather than force a cure, and most people regain near-normal function. Recovery can be slower in people with diabetes.
The large UK FROST trial compared early structured physiotherapy with a steroid injection, manipulation under anaesthesia, and arthroscopic capsular release. At twelve months, none was clearly superior for patient-reported pain and function; serious complications were rare but occurred mainly in the surgical groups, and manipulation was the most cost-effective hospital treatment.
In practice, structured physiotherapy with a steroid injection is a reasonable, lower-risk first option, and surgery is not automatically better. Where stiffness is still disabling after several months, manipulation or capsular release may be discussed.
Often there is no obvious trigger, but the strongest associations are with diabetes (where it is more common and more stubborn) and thyroid disorders; roughly 10 to 20 percent of people with diabetes develop a frozen shoulder. It can also follow a period of the shoulder being immobilised, or injury or surgery, and is most common between about 40 and 60 and in women.
There is growing interest in hormonal influences around the menopause, but that remains an area of research rather than settled fact. If there is no clear cause, your GP may check for diabetes or thyroid problems.
A steroid injection can give short-term pain relief, particularly in the painful phase of a frozen shoulder. For rotator cuff-related pain the benefit is more modest, tends to last weeks rather than months, and works best alongside an exercise programme.
On repeated injections, caution is reasonable: there is no strong evidence behind the common "rule of three", and steroid around the cuff tendons can, with frequent use, weaken tendon tissue. In diabetes it can also raise blood sugar for a day or two. They are a useful tool used thoughtfully and in limited numbers.
A bit of preparation makes the first weeks much easier: get as fit and well as you reasonably can, set your home up so things are within reach of your good arm, sort loose front-opening tops and slip-on shoes, and arrange help for the first week or two if you live alone. If you have diabetes, flag it early, as it affects healing and the response to any steroid used around the operation.
Good questions to take to clinic include: exactly what is being done and why; how long in the sling and what type; when physiotherapy starts; what to expect at six weeks, three months and a year; the pain-relief plan and whether you will have a nerve block; when you can shower, drive, work and return to your sport; and the main risks, including the chance of re-tear.
A nerve block numbs the nerves to the shoulder and arm, usually alongside a general anaesthetic, and gives excellent pain relief for roughly the first 10 to 24 hours. The arm often feels heavy and numb during that time, which is expected.
As it wears off, usually the evening or night after surgery, pain can return quite suddenly ("rebound pain"). This is well recognised and not a sign anything is wrong. Start your prescribed pain relief on schedule before the block fully wears off, so you stay ahead of it. A hoarse voice, a drooping eyelid, or a feeling of breathlessness can occur as the block spreads to nearby nerves; these settle as it wears off, but tell your anaesthetist beforehand if you have significant lung disease, asthma or sleep apnoea.
Sleep is one of the hardest parts of early recovery. Many people sleep semi-upright in a recliner or well propped up, supporting the operated arm on pillows, and keep the sling on at night for as long as the surgeon advises. Expect broken sleep for several weeks and try not to measure recovery by it.
Sling time varies with the operation, commonly around the first six weeks for a repair. Neck and upper-back ache from the strap is very common; easing and padding the strap helps, as do gentle hand, wrist and elbow movements. Do not stop the sling early just to get comfortable; wait until your surgeon clears it.
Pain is usually managed with a combination: the nerve block, regular paracetamol, an anti-inflammatory if safe for you, a short course of a stronger painkiller for the first few days, and ice. Using several milder approaches together often works better, with fewer side effects, than one strong drug.
If opioids make you sick, or you cannot take anti-inflammatories (stomach, kidney, heart or stroke history), this is common, so tell your team in advance to plan around it. One point that causes confusion: ketorolac (Toradol) is an anti-inflammatory given by mouth, muscle or drip, not an injection into the shoulder joint. Your prescriber decides what is safe for you.
Showering depends on your dressings and your surgeon's advice, so follow the instruction you were given. Keyhole wounds are small, but the skin around them can feel dry, tight or crispy and catch on clothing; a loose dressing stops it rubbing, and once fully healed a plain moisturiser can settle the dryness.
The incision points can stay tender for several weeks, which is normal. Once healed, gentle scar massage (your physiotherapist can show you) reduces sensitivity over time, and it is worth protecting healing scars from strong sun. Do not put creams on a wound that is not yet closed, and report spreading redness, heat, discharge or fever.
There is no single fixed date, and it is ultimately your responsibility to be safe and legal. As a rough guide, UK services often suggest driving around six to eight weeks after a repair, when you can control the car and perform an emergency stop confidently without significant pain, and you are not taking medication that affects alertness. It is also sensible to check your motor insurance position first.
Desk work is often possible around six to eight weeks, and heavier manual work around four to six months, depending on the job and the operation. Your surgeon's specific advice always takes priority.
Yes, and it is talked about far too little. Frustration, low mood, isolation and poor sleep are common while you are in a sling and reliant on others, and it does not mean recovery is going badly. Keeping gently active within your limits, staying connected to people, and marking small milestones all help.
If low mood is persistent, deepening, or affecting daily life, please speak to your GP. Effective support is available and asking early is a strength.
Yes. Wanting to understand your diagnosis and feel heard is reasonable, and a second opinion is a normal part of healthcare, not a criticism of anyone. You are entitled to ask your clinician to explain your scan and the reasoning, what the alternatives are, and what happens if you do nothing.
If you are still unsure, another shoulder specialist's view is a legitimate next step. Bring your imaging and a written list of questions, and be specific about your goals and what the shoulder stops you doing.
Most shoulder problems are not dangerous, but a few warning signs deserve prompt attention: an unexplained lump that is enlarging, deep or larger than a few centimetres; constant pain at rest and at night that is steadily worsening; feeling generally unwell with weight loss, fevers or night sweats; a sudden inability to lift the arm after an injury; signs of wound infection after surgery (a firm, warm, enlarging or increasingly tender area, spreading redness, discharge or fever); signs of a possible blood clot (new calf pain or swelling, or chest pain or breathlessness); or pain not relieved at all by your prescribed medication.
If you are worried, contact your GP or, after surgery, your surgical team. If you are acutely unwell, use NHS 111 or urgent care.