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Injection in Subacromial Space?

Chloe Bennett • • 7 min read
Injection in Subacromial Space?

A subacromial injection is a combination of corticosteroids and anesthetic injected into the subacromial space of the shoulder joint. This space is located below (sub-) the acromion

acromion
In human anatomy, the acromion (from Greek: akros, "highest", ōmos, "shoulder", plural: acromia) is a bony process on the scapula (shoulder blade). Together with the coracoid process it extends laterally over the shoulder joint. The acromion is a continuation of the scapular spine, and hooks over anteriorly.
› wiki › Acromion
, the highest part of the shoulder blade (scapula), and the ball shaped head of the upper arm bone (humerus).

How do you give a subacromial injection?

Subacromial Space injection

The patient sits with their arm resting by their side, as above. The posterior edge of the acromion is recognised, then the needle is inserted inferior to the posterolateral acromion and directed laterally into the subacromial space, aiming for the anterolateral corner of the acromion.

Does a subacromial injection hurt?

If an anesthetic medication is used in the injection, the shoulder may feel better within minutes after the injection; however, this effect only lasts a few hours. There could be increased pain for the next 24-48 hours, called a steroid flare.

Chloe Bennett
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Chloe Bennett

Chloe Bennett explores the intersection of pop culture, streaming entertainment, digital trends, and contemporary lifestyle. Her weekly commentary reaches thousands of culture enthusiasts.