R R

What Is Subacromial Decompression?

Subacromial decompression is shoulder surgery that removes tissue from the space beneath the acromion, a bone at the top of the shoulder. The surgeon may remove inflamed bursal tissue or shave a bone spur. The operation is usually performed with an arthroscope through small incisions. For isolated subacromial pain, clinical trials have not shown a meaningful benefit over placebo surgery or exercise therapy.

Link to This Resource Page

Provide a valuable resource to your clients or customers by linking to this resource page. Just place the following link on your website.

To display this...

What Is Subacromial Decompression?

Subacromial decompression is shoulder surgery that removes tissue from the space beneath the acromion, a bone at the top of the shoulder. The surgeon may remove inflamed bursal tissue or shave a bone spur. The operation is usually performed with an arthroscope through small incisions. For isolated subacromial pain, clinical trials have not shown a meaningful benefit over placebo surgery or exercise therapy.

read more about subacromial decompression ...

Copy this HTML:

Copy HTML Copied!

When Might Subacromial Decompression Be Discussed?

A surgeon may discuss the procedure when shoulder pain persists after nonsurgical care and an examination identifies a condition that may need surgery. Physical therapy, activity changes, medication, or an injection may be considered first. The reason for pain should be assessed, since a rotator cuff tear or another shoulder condition may require different treatment. Patients should discuss the evidence for decompression before choosing surgery for subacromial pain alone.

How Is Subacromial Decompression Performed?

The surgeon inserts a small camera and instruments through several shoulder incisions. The surgeon examines the area above the rotator cuff and may remove inflamed bursal tissue. A bone spur or a small portion of the acromion may also be removed. Any additional repair, such as rotator cuff surgery, is a separate part of the surgical plan.

What Happens During Recovery?

A sling may be used briefly after decompression performed on its own. Shoulder exercises help restore movement and strength as healing progresses. The rehabilitation plan changes if the surgeon also repairs a tendon or performs another procedure. The time needed to resume work, sports, or overhead activity varies.

What Are the Risks and Limits of Benefit?

Risks include infection, bleeding, stiffness, persistent pain, and complications related to anesthesia. Surgery does not guarantee relief of shoulder symptoms. In trials involving subacromial pain syndrome, decompression did not provide a meaningful advantage over placebo surgery or exercise therapy. A surgeon can explain whether another diagnosed shoulder problem changes the treatment decision.

Frequently Asked Questions About Subacromial Decompression

Is subacromial decompression the same as rotator cuff repair?

No. Decompression removes tissue from the space above the rotator cuff, while rotator cuff repair fixes a torn tendon.

Does subacromial decompression reliably relieve shoulder pain?

No. Trials in people with subacromial pain syndrome found no meaningful benefit over placebo surgery or exercise therapy.

Is the procedure performed with large incisions?

Usually not. Surgeons typically use an arthroscope and instruments inserted through small shoulder incisions.

Will physical therapy be needed after surgery?

Rehabilitation exercises are commonly part of recovery. The plan depends on whether decompression was performed alone or alongside another procedure.

References

Arthroscopic Subacromial Decompression. Hull University Teaching Hospitals NHS Trust. https://www.hey.nhs.uk/patient-leaflet/arthroscopic-subacromial-decompression/. Date Accessed September 30, 2026.

Arthroscopic subacromial decompression for subacromial shoulder pain (CSAW): a multicentre, pragmatic, parallel group, placebo-controlled, three-group, randomised surgical trial. PubMed. https://pubmed.ncbi.nlm.nih.gov/29169668/. Date Accessed September 30, 2026.

Arthroscopic subacromial decompression versus placebo surgery for subacromial pain syndrome: 10 year follow-up of the FIMPACT randomised, placebo surgery controlled trial. PubMed. https://pubmed.ncbi.nlm.nih.gov/41330610/. Date Accessed September 30, 2026.

Subacromial Decompression (SAD). Royal Orthopaedic Hospital NHS Foundation Trust. https://roh.nhs.uk/services-information/shoulder-and-elbow/subacromial-decompression. Date Accessed September 30, 2026.

Subacromial decompression versus diagnostic arthroscopy for shoulder impingement: randomised, placebo surgery controlled clinical trial. PubMed. https://pubmed.ncbi.nlm.nih.gov/30026230/. Date Accessed September 30, 2026.