Shoulder

Calcific Tendinitis of the Shoulder

Calcific tendinitis of the shoulder involves the deposition of calcium hydroxyapatite crystals within the rotator cuff tendons — most commonly the supraspinatus — causing episodes of severe pain that can be among the most intense in orthopedic practice. Fortunately, a range of highly effective treatments exists. At Maryland Orthopedic Specialists, we offer the full spectrum of care from conservative management to ultrasound-guided needling and lavage, resolving most cases without surgery.

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What is calcific tendinitis of the shoulder?

Calcium hydroxyapatite crystals deposit within the substance of the rotator cuff tendons, triggering an inflammatory response that causes intense pain, especially when the deposit transitions from a hard, chalk-like formative phase to a softer, "toothpaste-like" resorptive phase. The supraspinatus tendon (critical zone near its insertion) is affected in approximately 80% of cases.

Calcium hydroxyapatite crystals deposit within the substance of the rotator cuff tendons, triggering an inflammatory response that causes intense pain, especially when the deposit transitions from a hard, chalk-like formative phase to a softer, "toothpaste-like" resorptive phase. The supraspinatus tendon (critical zone near its insertion) is affected in approximately 80% of cases. The condition affects women more than men and peaks in the fourth and fifth decades.

Gärtner Classification

The Gärtner classification characterizes calcium deposits on X-ray by density and appearance:

Type I (formative): Dense, homogeneous, with well-defined margins; hard, chalk-like consistency at needling
Type II (transitional): Mixed pattern; partly dense, partly fluffy
Type III (resorptive): Translucent, heterogeneous, with ill-defined margins; soft, toothpaste-like consistency; associated with the most severe acute pain and the best response to needling/lavage

Type III deposits are most amenable to ultrasound-guided barbotage.

Treatment options

NSAIDs and Physical Therapy

Oral NSAIDs reduce the inflammatory burden of acute attacks. PT targeting shoulder mechanics, posterior capsular stretching, and rotator cuff strengthening addresses the impingement component and is effective for chronic management between attacks.

Subacromial Corticosteroid Injection

Ultrasound-guided subacromial injection provides significant short-term pain relief during acute exacerbations by reducing bursal and peritendinous inflammation. It does not dissolve the deposit but effectively manages the inflammatory pain while awaiting spontaneous resolution.

Ultrasound-Guided Needling and Lavage (Barbotage)

Ultrasound-guided percutaneous needle aspiration and lavage (barbotage) is the most effective minimally invasive treatment for calcific tendinitis and is a central offering at Maryland Orthopedic Specialists. Under ultrasound guidance, a needle is inserted directly into the calcium deposit, the soft material is fragmented and aspirated, and the area is irrigated. Success rates exceed 70–80% with a single procedure for Gärtner Type III (soft) deposits; Type I (hard) deposits respond less completely but still benefit. This outpatient procedure avoids surgery in the majority of patients and is typically combined with subacromial corticosteroid injection for post-procedure pain management.

Extracorporeal Shockwave Therapy (ESWT)

ESWT delivers focused high-energy sound waves to the calcific deposit, inducing fragmentation and resorption. Multiple randomized trials demonstrate superiority over sham treatment. Particularly useful for Gärtner Type I–II (harder) deposits not amenable to barbotage. Requires multiple treatment sessions and takes weeks for full effect.

Surgical Procedure

Subacromial Decompression / Acromioplasty

Arthroscopic shaving of the undersurface of the acromion to enlarge the subacromial space, relieve mechanical impingement on the rotator cuff tendons, and address the bony component of impingement syndrome.

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Shoulder Arthroscopy (Diagnostic & Operative)

Minimally invasive diagnostic and operative scope of the glenohumeral joint and subacromial space, used to evaluate and treat labral tears, rotator cuff pathology, AC joint arthritis, loose bodies, and synovitis.

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Frequently Asked Questions

Will my calcium deposit go away on its own?

Many deposits, especially soft (Type III) ones, eventually resorb spontaneously. However, this process can take months to years and may involve severely painful acute attacks. Treatment accelerates resolution and controls symptoms.

Is the needling procedure painful?

The area is thoroughly numbed with local anesthetic before the procedure. Most patients experience mild pressure but minimal sharp pain during barbotage. Post-procedure soreness lasts 1–3 days and is managed with ice and analgesics.

Can calcific tendinitis coexist with a rotator cuff tear?

Yes, though this combination is less common. MRI is obtained when clinical examination raises concern for concurrent rotator cuff tear.

What treatment options are available if my calcium deposit does not go away on its own?

When conservative measures such as physical therapy and anti-inflammatory medications have not resolved symptoms after several months, the next step is typically barbotage — an ultrasound-guided needling and lavage procedure that breaks up and aspirates the calcium deposit. A corticosteroid injection is often given at the same time to reduce inflammation. If barbotage fails or the deposit is very large and dense, extracorporeal shock wave therapy (ESWT) is another effective non-surgical option. Arthroscopic surgical removal is reserved for cases that have not responded to these less-invasive treatments.

How long does recovery from calcific tendinitis take?

Recovery depends on whether the condition is in its acute (extremely painful, often self-resolving) or chronic phase. Acute calcific tendinitis often settles significantly within a few weeks as the calcium resorbs. Chronic cases treated with barbotage or ESWT typically show gradual improvement over six to twelve weeks after the procedure, with continuing gains over three to six months as the tendon remodels. Physical therapy is an important component throughout recovery to restore shoulder strength and prevent recurrence.