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What's subacromial bursa?

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Dr. Aruna Seneviratne
Sports Medicine

In brief: Normal structure

Its a fluid filled sack between the rotator cuff and the acromion.
It resides below the acromion, hence "sub-acromial". It functions to help the rotator cuff glide smoothly below the acromial bone. When a sub acromial bone spur irritates it, you get subacromial bursitis, or impingement syndrome of the shoulder. This can be painful, and a risk factor for rotator cuff tears in the future. Its usually treated with anti-inflammatory meds, pt, and rest. If not better, a work up is warranted.

In brief: Normal structure

Its a fluid filled sack between the rotator cuff and the acromion.
It resides below the acromion, hence "sub-acromial". It functions to help the rotator cuff glide smoothly below the acromial bone. When a sub acromial bone spur irritates it, you get subacromial bursitis, or impingement syndrome of the shoulder. This can be painful, and a risk factor for rotator cuff tears in the future. Its usually treated with anti-inflammatory meds, pt, and rest. If not better, a work up is warranted.
Dr. Aruna Seneviratne
Dr. Aruna Seneviratne
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