Calcific Tendonitis (Calcific Tendinopathy): Fast Relief for Calcium Deposits in Your Shoulder
Insight MSK – Specialist Musculoskeletal Clinic
If you’ve been told you have calcium deposits in your shoulder tendon, you’ll know how debilitating the pain can be. The sudden flare-ups, the inability to lift your arm, and that relentless ache that keeps you awake at night. The good news? There’s a highly effective treatment called barbotage that can provide rapid relief.
What Is Calcific Tendonitis?
Calcific tendonitis—also known as calcific tendinopathy, calcific tendinitis, or calcifying tendinitis—occurs when a calcific deposit or several small calcific deposits, build up within the rotator cuff tendons of your shoulder joint These aren’t the same as bone spurs or arthritis. Instead, they’re deposits of calcium phosphate crystals that form within the tendon tissue itself, most commonly affecting the supraspinatus tendon.
A note on terminology: You may hear the terms “tendonitis”, “tendinitis” and “tendinopathy” being used. Tendonitis and tendinitis are two words which mean the same thing- acute inflammation of a tendon, whilst tendinopathy is a broader term encompassing both inflammatory and degenerative changes. In practice, both terms are used interchangeably for this condition, and you’ll see both in medical literature.
Calcific tendinopathy is a bit like the process of a piece of chalk forming inside your tendon. When your body tries to reabsorb these deposits, it triggers an intense inflammatory response—and that’s when the severe pain kicks in.
Why Does It Happen?
We don’t fully understand why some people develop calcific deposits whilst others don’t. What we do know is that it’s not caused by dietary calcium or taking calcium supplements, you can’t prevent it by changing what you eat.
Current research suggests that calcific tendonitis happens because some tendon cells temporarily change their behaviour and start acting more like cartilage (tendon metaplasia). This makes calcium more likely to form inside the tendon. Reduced blood flow and metabolic factors (such as diabetes or thyroid conditions) may contribute. It is not caused by diet or calcium intake. Interestingly, it’s often when your body starts trying to reabsorb these deposits that symptoms flare up dramatically, because of the chemical irritation.
Who Gets Calcific Tendonitis?
Calcific tendonitis can affect anyone, though certain patterns emerge:
You’re more likely to develop it if you:
- Are between 30-60 years old – Peak incidence is in the 40s
- Are female – Women are affected more frequently than men
- Have thyroid problems – There’s an association with both overactive and underactive thyroid
- Have diabetes – Some studies suggest a higher incidence in diabetic patients
- Have a background of tendinosis – Pre-existing tendon degeneration appears to increase risk
- Work in certain occupations – Jobs involving repetitive overhead activities may be associated
However, many patients develop calcific deposits with no obvious risk factors or occupational cause.
How Do I Know If I Have Calcific Tendonitis?
The symptoms of calcific tendonitis can vary dramatically depending on which phase you’re in.
Classic symptoms include:
- Sudden, severe shoulder pain that develops rapidly (often overnight)
- Pain in the upper arm and shoulder
- Significant pain at night, often disrupting sleep
- Difficulty lifting your arm, particularly to the side or overhead
- Pain that’s worse with overhead activities
- A feeling of “catching” or sharp pain with certain movements
- Inability to lie on the affected shoulder
What makes calcific tendonitis distinctive is the intensity and sudden onset of pain. Many patients describe waking up one morning in absolute agony, unable to move their arm, when it was fine the day before.
The pain typically develops when your body starts trying to break down and reabsorb the calcium deposits—a process that triggers intense inflammation in the surrounding tissues.
The Phases of Calcific Tendonitis
Your first step is a free virtual consultation to discuss your symptoms and medical history. If appropriate, your in-person visit will include:
Pre-Calcific Phase
The tendon undergoes changes that make it susceptible to calcium deposition. You typically have no symptoms at this stage.
Formative Phase (Calcification)
Calcium deposits gradually build up within the tendon. This can occur over months or years. You may have mild discomfort or no symptoms at all during this phase. The deposits appear chalk-like and solid on imaging.
Resorptive Phase (Most Painful)
Your body recognises the calcium deposits and attempts to reabsorb them. This triggers an intense inflammatory response. The deposits become softer and more liquid, sometimes appearing almost cyst-like on ultrasound. This is when you’re in agony and when treatment is most effective.
Post-Calcific Phase
The calcium has been reabsorbed, inflammation settles, and the tendon begins to heal. Pain resolves, though you may have some residual stiffness initially.
Is It Really Calcific Tendonitis? Understanding the Difference
Impingement causes a painful arc between 60-120 degrees of arm elevation. With calcific tendonitis in the acute phase, you’re often unable to move your arm at all due to severe pain. The pain is more constant and intense.
With a tear, you’ll have weakness out of proportion to pain. You can’t lift your arm due to mechanical weakness. With calcific tendonitis, the problem is pain—if I can adequately numb your shoulder, you’d be able to lift your arm.
Frozen shoulder causes global restriction in all directions with gradual onset over weeks. Calcific tendonitis typically has sudden onset and, whilst painful to move, doesn’t have that mechanical “stuck” quality of adhesive capsulitis.
This is an important distinction. Gout can also cause sudden, severe joint pain with crystal deposits (uric acid crystals), whilst pseudogout (CPPD – calcium pyrophosphate deposition disease) involves calcium crystals in the joint itself. However:
- Gout/pseudogout more commonly affect other joints (big toe, knee, wrist)
- They typically cause visible redness and swelling
- They affect the joint space, not the tendon
- Blood tests and joint fluid analysis can distinguish them
- The ultrasound appearance is different
I have occasionally seen CPPD affecting the shoulder, but it’s quite rare. The ultrasound appearance helps distinguish between calcium in the tendon (calcific tendonitis) versus calcium in the joint (CPPD).
Red flags requiring urgent assessment:
- Severe redness and heat in the shoulder
- Fever or feeling systemically unwell
- Recent trauma or injury
- Progressive weakness despite reducing pain
- Symptoms not improving with initial treatment
How Is It Diagnosed?
Diagnosis begins with your clinical history and my examination. The typical story is sudden onset of severe shoulder pain, often with minimal movement possible due to pain. You’ll typically point to the lateral shoulder and upper arm as the pain location.
During examination, I’ll assess:
- Active range of motion – What you can do yourself (usually very limited due to pain)
- Passive range of motion – What I can achieve by moving your arm (often better than active, showing it’s pain rather than mechanical restriction)
- Painful arc test – Though you may be too painful to demonstrate this
- Neer’s and Hawkins-Kennedy tests – Impingement tests that may be positive
- Palpation – Direct tenderness over the affected tendon
X-ray is excellent for showing calcific deposits. They appear as dense white areas on the X-ray, typically above the humeral head. X-rays are particularly good at confirming the diagnosis and showing the size and location of deposits.
Ultrasound scan is my preferred imaging method because it shows:
- The exact location of calcium deposits within the tendon
- The consistency of the deposits (hard and chalk-like vs soft and liquid)
- Associated inflammation in the bursa
- The state of the surrounding rotator cuff
- Real-time assessment of tendon movement
- Whether deposits are in the tendon (calcific tendonitis) or joint (CPPD)
The ultrasound helps me determine whether you’re in the resorptive phase (soft, liquid deposits—ideal for barbotage) or the formative phase (hard deposits—more challenging to remove but can still be broken down).
You ideally should have had imaging before your appointment (either X-ray or ultrasound scan), as this confirms the diagnosis and allows me to plan the most effective treatment. However, I can perform the ultrasound examination during your consultation if needed.
Treatment Options: What Works?
Conservative Management
Some patients with calcific tendonitis will have tried:
- Oral anti-inflammatory medication (NSAIDs)
- Physiotherapy
- Activity modification
- Rest and ice
Whilst these can help manage symptoms, they don’t address the underlying calcium deposits. The natural history is variable, some deposits reabsorb spontaneously over months to years, whilst others persist indefinitely.
Ultrasound-Guided Corticosteroid Injection
A simple steroid injection into the subacromial bursa can help reduce inflammation and provide pain relief, particularly if you’re in the acute resorptive phase. However, this doesn’t remove the calcium deposits themselves.
Barbotage (Percutaneous Needle Aspiration and Lavage)
For patients with liquid or semi-liquid calcium deposits, ultrasound-guided barbotage offers the most effective solution. This involves using a needle to break up and wash out the calcium deposits under direct ultrasound visualisation.
When Barbotage Doesn't Work
For the small percentage of patients who don’t respond to barbotage, other options include:
- Extracorporeal shockwave therapy (ESWT) – Sound waves to break up deposits
- Arthroscopic removal – Keyhole surgery to remove deposits surgically
However, in my experience, the vast majority of patients with appropriate deposits respond extremely well to barbotage and never need further intervention.
Who Should Consider Barbotage?
This treatment is particularly suitable if you:
- Have confirmed calcium deposits on X-ray or ultrasound
- Are in the acute painful phase (resorptive stage)
- Have failed conservative management for 6-12 weeks
- Have severe pain not controlled by oral medication
- Are unable to sleep due to shoulder pain
- Have soft or liquid calcium deposits on ultrasound (these respond best)
- Want rapid symptom relief
Even if you have hard, chalk-like calcifications, barbotage can help by needling the deposits repeatedly to break them down—a bit like breaking up a sugar cube. If you break it into smaller pieces and put it in water, it dissolves much faster than a solid block.
The Treatment: Ultrasound-Guided Barbotage for Calcific Tendonitis
Barbotage, also called percutaneous needle lavage, ultrasound-guided calcium aspiration, or needle aspiration of calcific tendonitis, is a minimally invasive procedure performed under ultrasound guidance to remove calcium deposits from your shoulder tendon.
The term “barbotage” comes from the French word meaning “to stir up” or “agitate,” which perfectly describes the technique. Under direct ultrasound visualisation, I use a needle to break up, wash out, and aspirate the calcium deposits from within your tendon.
- Ultrasound guidance – I use real-time ultrasound imaging throughout to visualise the calcium deposit and guide my needle precisely to the right location within the affected rotator cuff tendon
- Local anaesthetic – First, I thoroughly numb the bursa (the space around the tendon) and the area around the deposit. I use bupivacaine, a long-acting local anaesthetic, and wait adequately for it to take full effect
- Accessing the deposit – I guide the needle directly into the calcium deposit under continuous ultrasound visualisation
- Breaking up hard deposits – If the calcium is hard and chalk-like, I repeatedly needle it—”pecking” at it to break it into smaller fragments. This needling also stimulates bleeding within the tendon, which promotes healing
- Washing out liquid deposits – If the calcium is soft and liquid (the ideal scenario), I inject sterile saline and then aspirate it back out, washing away as much of the calcium as possible. You can actually see the white, milky calcium-laden fluid being removed
- Corticosteroid injection – After removing as much calcium as possible, I inject corticosteroid into the subacromial bursa to reduce inflammation and provide additional pain relief
For soft, liquid calcium deposits, barbotage mechanically removes the irritant material, immediately reducing the inflammatory trigger. You often feel relief within hours to days.
For hard calcium deposits, the repeated needling breaks them into smaller fragments. Using that sugar cube analogy: if you put a solid block of sugar in water, it takes ages to dissolve. But if you break it into tiny pieces first, it dissolves rapidly. The same principle applies to calcium deposits—smaller fragments are reabsorbed much more quickly by your body.
The needling also causes controlled micro-trauma to the tendon, which stimulates a healing response and improves blood flow to the cells in the area.
The procedure takes approximately 20-30 minutes from start to finish.
Is it painful? Not when done properly. The key—as with all my procedures—is adequate local anaesthetic and waiting long enough for it to work.
I inject local anaesthetic subcutaneously first, then around the bursa and near the calcium deposit. I wait at least 1-2 minutes for full effect. Most patients tell me they feel pressure and some odd sensations of “crunching” or movement within the shoulder, but not pain.
Some patients report a satisfying feeling when the calcium is being washed out—they can feel something happening, and often comment, “Oh, that’s different” or “I can feel something moving.”
The whole appointment typically lasts 45-60 minutes including assessment, but the actual barbotage procedure itself is 20-30 minutes.
Barbotage is very safe when performed under ultrasound guidance. Risks are minimal and similar to any injection procedure:
- Temporary increase in pain or inflammation for 24-48 hours (quite common, managed with ice and oral medication)
- Infection (extremely rare with sterile technique)
- Bruising at the injection site
- Inadvertent damage to surrounding structures (avoided through ultrasound guidance)
There have been rare cases of rotator cuff tendon rupture following barbotage, but these have typically occurred in patients with pre-existing significant tendon degeneration. I carefully assess tendon quality on ultrasound before proceeding and discuss any concerns with you.
If you’re diabetic: The corticosteroid can raise blood sugar levels for 1-2 weeks. I won’t perform the procedure if your HbA1c is above 8.5 (for type 1 or insulin-dependent diabetics).
Most studies report significant improvement in pain and function in a majority of appropriately selected patients (often quoted around 60–75%) with calcific tendonitis, and in addition, studies have shown significant improvements in pain scores and shoulder function following the procedure.
In my clinical experience performing these procedures regularly (I do several each week), the success rate is high, particularly when:
- The deposits are in the resorptive phase (soft/liquid)
- The procedure is performed under ultrasound guidance
- Adequate calcium can be removed or broken up
- Patients follow post-procedure advice
Most patients I hear back from report significant improvement, though of course, the satisfied patients may be less likely to follow up than those with ongoing issues.
To make your appointment efficient:
- Any previous imaging (X-rays or ultrasound scans showing the calcium deposits)
- List of current medications
- Recent HbA1c if diabetic
- Details of treatments already tried
- Comfortable, loose clothing that allows shoulder access
Day-by-Day: Your Recovery Timeline After Barbotage
You might feel immediate relief once the local anaesthetic wears off, or you might experience a temporary flare-up of pain as the inflammation settles. Both are normal.
What to do:
- Have a resting phase of 48 hours for your shoulder
- Apply ice regularly (15-20 minutes, several times daily)
- Take paracetamol or ibuprofen as needed
- Avoid reaching, lifting, or overhead activities
- You can move gently for personal care but don’t stress the shoulder
Most patients notice significant improvement by this point. The severe, constant pain typically resolves, though you may still have discomfort with certain movements.
What to do:
- Begin gentle, pain-free movement
- Gradual return to light daily activities
- Continue ice if still inflamed
- Avoid heavy lifting or forceful movements
You should have substantial improvement by now. Most patients are sleeping comfortably and performing most daily activities without significant pain and can begin exercise.
What to do:
- Progressively increase activity levels
- Begin gentle strengthening exercises
- Gradually return to normal activities
- Start overhead activities cautiously
Most patients are back to full, pain-free function by this point. Some residual stiffness or minor discomfort with extreme movements may persist but should continue improving.
What to do:
- Continue progressive loading and strengthening
- Return to sports and demanding activities as tolerated
- If symptoms haven’t significantly improved, follow up for reassessment
Contact me if:
- Pain significantly worsens after the first week
- You develop fever or feel unwell
- The shoulder becomes increasingly hot, red, and swollen
- You develop new weakness that wasn’t present before
- You’re not seeing substantial improvement by 4-6 weeks
Exercises After Barbotage for Calcific Tendonitis
Stand and lean forward, letting your affected arm hang down. Gently swing it in small circles and back-and-forth. This maintains some mobility without stressing the healing tendon. Do this for 1-2 minutes, 3-4 times daily.
- Table slides: Sit at a table, place your hand on a towel, and gently slide it forward and to the side
- Wall walks: Face a wall, walk your fingers up as high as comfortable without forcing
- Pendulums with gradually increasing range
Aim for pain-free movement. Some discomfort is acceptable, but sharp pain means you’re doing too much.
- Active elevation: Lift your arm forward and up as high as comfortable
- Active abduction: Lift your arm out to the side
- Resistance band exercises: External and internal rotation with light resistance
- Gradually progress to overhead activities
What to Avoid
- Aggressive stretching in the first 2-4 weeks
- Heavy lifting or forceful overhead activities too soon
- Any movements that reproduce your original severe pain
- Complete immobilisation (this can lead to stiffness)
Do I Need Physiotherapy After Barbotage?
Unlike frozen shoulder, physiotherapy can be very helpful after barbotage once the initial acute inflammation settles (typically after the first week). A physiotherapist can guide you through appropriate progression of exercises and help you regain full strength and function.
However, in the first week when things are still inflamed, I don’t think formal physiotherapy adds much, simple home exercises and rest are sufficient.
Will the Calcium Come Back?
Recurrence of calcium deposits in the same location is uncommon but possible. Most patients who have successful barbotage don’t experience a return of deposits in the treated tendon.
However, you can develop new calcium deposits in other tendons of the rotator cuff. If you’ve had calcific tendonitis once, you may be predisposed to developing it elsewhere, though this is not inevitable.
Real Patient Stories
“I woke up one Thursday morning and couldn’t move my right arm at all. The pain was unbearable, worse than childbirth, honestly. I couldn’t work, couldn’t drive, couldn’t sleep. My GP sent me for an X-ray which showed a large calcium deposit. I had the barbotage on the Monday. By Wednesday, the excruciating pain was gone. I still had some soreness for a couple of weeks, but nothing like before. Within a month, I was completely back to normal.”
“The calcium had been building up for months apparently, but I only knew about it when it suddenly went from a niggle to absolute agony overnight. I couldn’t work, couldn’t lift anything with my right arm. During the barbotage, I could actually feel the calcium being washed out. It was the strangest sensation, but not painful. The relief was almost immediate. I was back at work within two weeks, though I took it easy for the first month.”
“I’d had months of on-and-off shoulder pain, but nothing prepared me for when it went into the resorptive phase. I couldn’t write on the whiteboard, couldn’t sleep on that side. The ultrasound showed the deposit was soft and liquid, apparently the ideal type for barbotage. Honestly, the relief after the procedure was life-changing. The severe pain was gone within days. I needed some physio afterwards to get my full strength back, but the debilitating pain never returned.”
“Mine was hard calcium, like chalk, the doctor said. He explained it wouldn’t wash out easily but that he’d break it up by needling it repeatedly. I was sceptical, but desperate. The procedure itself was fine, more uncomfortable than painful. The improvement wasn’t instant like some people, but over the next month, the pain gradually settled. Three months later, a follow-up ultrasound showed the calcium had almost completely disappeared. My shoulder’s been perfect since.”
Frequently Asked Questions About Calcific Tendonitis and Barbotage
Most patients need only one barbotage procedure. Occasionally, if there’s a large volume of calcium or it’s in multiple locations, a second procedure may be beneficial. We’d typically wait 4-6 weeks before considering a repeat procedure.
Not on the day of the procedure due to local anaesthetic. After that, it depends on your pain levels and control. If you can perform an emergency stop safely and have full control of the steering wheel, you’re probably fine. Most patients can drive within 3-5 days.
For desk-based work, most patients return within 2-5 days. For manual labour or jobs requiring overhead work, you may need 1-3 weeks. We can provide documentation for your employer if needed.
Avoid sports for at least 2-4 weeks to allow the tendon to heal. Swimming and cycling can usually resume earlier (around 2 weeks) than impact sports or throwing activities. Listen to your body and progress gradually.
Yes, though the mechanism is slightly different. For hard deposits, I break them up through repeated needling, which allows your body to reabsorb the fragments more quickly. Whilst perhaps not as immediately satisfying as washing out liquid calcium, the outcomes are still very good.
The vast majority of clinically relevant calcific deposits are visible on ultrasound. If there’s a discrepancy, we may need to correlate the X-ray and ultrasound findings carefully. Sometimes what appears to be calcium on X-ray can be other structures, or the ultrasound settings may need adjustment.
Unfortunately, there’s no proven prevention strategy. It’s not related to dietary calcium intake or calcium supplements. Maintaining good shoulder health, avoiding prolonged periods of immobility, and treating any tendon issues promptly may help, but there are no guarantees.
Plan for 45-60 minutes. This includes clinical assessment, ultrasound examination, the barbotage procedure itself (20-30 minutes), and post-procedure advice.
Most private medical insurance policies cover barbotage for calcific tendonitis, though you should check your specific policy and obtain pre-authorisation if required. We can provide all necessary documentation for your insurer.
Yes, they’re the same condition. Tendonitis technically refers to inflammation, whilst tendinopathy is a broader term that includes both inflammatory and degenerative changes. You’ll see both terms used in medical literature and by clinicians.
Yes, though it’s most common in the shoulder. It can occasionally affect other tendons such as the hip, wrist, or foot, though these are much rarer.
Should I Wait or Act Now?
If you’re in the acute, painful phase of calcific tendonitis—particularly if you can’t sleep, can’t work, and have failed conservative management—there’s little benefit in waiting. The calcium deposits won’t disappear on their own predictable timeline, and you’ll suffer needlessly in the meantime.
Barbotage offers rapid relief for most patients, with minimal risks when performed under ultrasound guidance by an experienced practitioner. The research supports its effectiveness, and my clinical experience backs this up consistently.
In my practice, I perform four to five barbotage procedures weekly for calcific tendonitis, and the results are consistently good. My background as a physiotherapist also gives me unique insight into the rehabilitation process and when conservative management has reached its limits.
What Happens Next?
If you have confirmed calcium deposits on imaging and you’re experiencing severe pain that’s not controlled by conservative measures, it’s worth considering barbotage.
What to expect at your appointment:
- 1Clinical history – Detailed discussion of your symptoms, their onset, and treatments tried
- 2Physical examination – Range of motion assessment, palpation, and specific shoulder tests
- 3Ultrasound examination – Detailed visualisation of the calcium deposit, its consistency, location, and surrounding structures
- 4Treatment discussion – Is barbotage appropriate? What are the alternatives?
- 5Barbotage procedure (if appropriate and you consent) – Performed under ultrasound guidance
- 6Post-procedure advice – Activity modification, exercises, pain management
- 7Follow-up planning – When to expect improvement, when to be concerned
Ideally, you’ll bring existing imaging (X-ray or ultrasound showing the calcium deposit), but I can perform the ultrasound examination during your consultation if needed.
The key is not to suffer unnecessarily. Calcific tendonitis in the acute phase is one of the most painful shoulder conditions, but it’s also one of the most treatable with ultrasound-guided barbotage.
Book an appointment
If you’re ready to get rid of that calcium deposit and reclaim your shoulder function, book your assessment today. Let’s get you back to sleeping comfortably and using your arm without that debilitating pain.
Kim, M.S. et al. Diagnosis and Treatment of Calcific Tendinitis of the Shoulder. (2020). Documents reactive changes and tendon cell metaplasia. https://pmc.ncbi.nlm.nih.gov/articles/PMC7726362/
Gatt, D.L. et al. Ultrasound-Guided Barbotage for Calcific Tendonitis of the Shoulder: Systematic Review. (2014). Supports safety and success rate of barbotage.
https://pubmed.ncbi.nlm.nih.gov/24813322/
Lee, J.P. et al. Clinical and Radiological Outcomes of Ultrasound-Guided Barbotage. (2022). Clinical outcomes in a cohort of 36 patients showing improvement.
https://pmc.ncbi.nlm.nih.gov/articles/PMC9185114/
