12/03/2024
Did you know that the Rotator Cuff is actually 4 separate muscles? Very few people do because it's so often spoken of as if it were a single structure. This can lead to complications in treatment since a diagnosis of a 'Rotator Cuff Injury' can mean a wide range of injuries and issues in a range of combinations.
The four muscles are Supraspinatus, Infraspinatus, Subscapularis and Teres minor all play a part in stabilizing your shoulder joint and helping you move your arm.
From WebMD
Supraspinatus. This holds your humerus in place, keeps your upper arm stable, and helps lift your arm.
Infraspinatus. This is the main muscle that lets you rotate and extend your shoulder.
Teres minor. This is the smallest rotator cuff muscle. Its main job is to help with rotation of your arm away from your body.
Subscapularis. This holds your upper arm bone to your shoulder blade and helps you rotate your arm, hold it straight out, and lower it.
Rotator cuff: A group of muscles surrounding your shoulder joint is prone to injuries with growing age, leading to other complications.
