Surgery preparation

Arthroscopic capsular release

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.

Before surgery
The day of surgery
In hospital
Going home
Recovery week by week
Recovery calendar
Consent information
Before surgery
1
Pre-assessment
2
Preparing your home
3
Medications
4
Fasting & what to bring
After surgery
5
Exercises after surgery
6
Pain management
7
Physiotherapy
8
Return to activity

Step 1 - Your pre-operative assessment

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.

What will happen at the pre-assessment?

Blood tests and an ECG

Routine checks to ensure you are fit for anaesthesia.

Medication review

Blood thinners such as warfarin, apixaban, or aspirin may need to be paused before surgery.

Anaesthetic discussion

Capsular release is usually performed under general anaesthesia, often combined with an interscalene nerve block for post-operative pain relief.

Physiotherapy referral

Physiotherapy must be arranged to start promptly after surgery - this is essential for a successful outcome.

Diabetes

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.

The day of surgery

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.

Arrive at the time given

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.

Consent and marking

Your surgeon will confirm the procedure, mark the operative side, and you will sign a consent form before going to theatre.

Anaesthetic

You will meet the anaesthetist in the anaesthetic room. Once anaesthesia is established, the procedure will begin.

Recovery room

After surgery you will wake in the recovery room where nurses monitor your vital signs until you are stable and comfortable.

In hospital

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.

Pain control

You will be given oral pain relief before discharge. Take it regularly for the first 48 hours rather than waiting until pain is severe.

Wound check and dressing

A nurse will check the wound before you leave and explain how to keep it clean and dry.

Discharge letter and follow-up

You will receive a letter for your GP and details of your next outpatient appointment - usually at 2 weeks for a wound check.

You must not drive yourself home

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.

Going home

⚠️ 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.

Keep the wound clean and dry

Avoid getting the wound wet until it is fully healed - usually 10–14 days. Use a waterproof cover or cling film when showering.

Take your pain relief as prescribed

Do not wait until pain is severe before taking medication. Regular simple analgesia (paracetamol, ibuprofen if appropriate) is more effective.

Attend your wound check appointment

This is usually 2 weeks after surgery. Sutures or clips will be removed if used.

When to contact the hospital

Seek urgent advice if you develop increasing redness, warmth, swelling, discharge from the wound, or a temperature above 38°C - these may indicate infection.

Recovery week by week

2–4 weeks before surgery

Pre-assessment

Blood tests, ECG, medication review, and physiotherapy referral arranged.

Day of surgery

Arthroscopic procedure

Performed under general anaesthesia. The thickened capsule is released arthroscopically. Most patients go home the same day.

Days 1–7

Early exercises begin

Passive stretching and pendulum exercises begin within 24 hours to maintain the movement gained in surgery.

Weeks 2–6

Active physiotherapy

Progressive range of movement and strengthening exercises under physiotherapy supervision.

3–6 months

Return to full activity

Most patients recover full or near-full range of movement within 3–6 months of surgery.

Common questions

Will I need a sling?

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.

How soon can I move my shoulder?

Pendulum and passive exercises typically begin on the day after surgery. Your physiotherapist will guide you through the programme.

How long will I be in hospital?

Capsular release is usually a day-case procedure. Most patients go home a few hours after surgery.

What if my shoulder stiffens again?

Some recurrence of stiffness is possible. Consistent physiotherapy exercise is the most important factor in preventing this.

Recovery calendar

A week-by-week guide to recovery. Individual timelines vary, always follow your surgical team.

Key milestones
💉
Early
Steroid injection
Most effective in the freezing stage to control pain and accelerate recovery.
🤸
Ongoing
Daily stretching
Consistent home stretching programme is essential throughout all three stages.
🚗
When safe
Return to driving
When you can perform an emergency stop without pain.
🏊
Months 3–6
Swimming
Helpful for range of motion as movement allows.
🏆
1–3 years
Full recovery
Most patients regain near-normal movement, though some stiffness may persist.
Week by week
Freezing stage 6wk–9mo
Pain management with analgesia
Steroid injection (most effective now)
Gentle passive stretching daily
Avoid aggravating activities
Sleep support, pillow under arm
Frozen stage 4–12mo
Pain reduces, stiffness dominates
Sustained passive stretching 2× daily
Hydrodilatation if not improving
Physiotherapy for guided mobility
Maintain fitness with walking
Thawing stage 6mo–2yr
Movement gradually returns
Active strengthening begins
Swimming as movement allows
Return to driving when safe
Continue home programme daily
After surgery (if needed)
Intensive physio from day after surgery
Rapid mobility gains expected
Maintain gains with home stretching
Return to full activity 6–12 weeks
Sling for 1–2 days only
Common questions

Your questions, answered

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.

This conditionDoes a frozen shoulder ever actually get better?

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.

Sources  NICE CKS · AAOS OrthoInfo
TreatmentWhat treatments work, and is surgery better?

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.

Sources  UK FROST trial · NICE CKS
CausesIs it linked to diabetes, thyroid problems or the menopause?

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.

Sources  AAOS OrthoInfo · NICE CKS
InjectionsDo cortisone injections work, and is it bad to have repeated ones?

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.

Sources  NICE CKS · 2024 frozen shoulder meta-analysis · NIHR Evidence
PreparingHow can I prepare, and what should I ask my surgeon?

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.

Sources  British Elbow & Shoulder Society
AnaesthesiaWhat is a nerve block, and what happens when it wears off?

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.

Sources  ASRA · StatPearls / OpenAnesthesia
Pain & sleepHow will I sleep, and how long will I be in the sling?

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.

Sources  NHS community MSK service
Pain & medsWhat can I take for pain, and what if I cannot tolerate strong painkillers?

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.

Sources  NHS community MSK service
Wound & scarsHow do I look after the wound and scars, and when can I shower?

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.

Sources  NHS community MSK service
Getting backWhen can I drive and return to work?

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.

Sources  NHS community MSK service · Hospital for Special Surgery
WellbeingIs it normal to feel low during recovery?

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.

Sources  General clinical guidance
Your choiceCan I ask for a second opinion?

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.

Sources  General clinical guidance
UrgentWhen should I seek urgent help?

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.

Sources  NICE NG12 & Cancer Research UK · British Elbow & Shoulder Society
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