Where does the supraspinatus tendon insertion?
Supraspinatus muscle
| Origin | Supraspinous fossa of scapula |
|---|---|
| Insertion | Greater tubercle of humerus |
| Action | Shoulder joint: abduction of arm, stabilization of the humeral head in the glenoid cavity |
| Innervation | Suprascapular nerve (C5, C6) |
| Blood supply | Suprascapular artery |
What is the insertion point of supraspinatus?
Insertion. The supraspinatus tendon is inserted into the superior facet of the greater tubercle of the humerus.
What is anterior supraspinatus tendon?
The supraspinatus tendon is located on the back of your shoulder and helps your arm to move throughout its full range of motion – and helps with power and strength.
Where is pain with supraspinatus tear?
Symptoms of a supraspinatus tear include: Sharp pain in the shoulder at the time of injury. Pain when the arm is rotated outwards and upwards. Increased pain and weakness when the arm is raised sideways between a 60-degree arc.
Is supraspinatus tear painful?
The tear can be partial or full-thickness. Pain, loss of range of motion and weakness is the 3 most common symptoms. Supraspinatus tears can be managed conservatively, with NSAID’s and physiotherapy, as well as surgically to repair the tear.
What is the origin insertion and action of the subscapularis?
Subscapularis muscle
| Origin | Subscapular fossa of scapula |
|---|---|
| Insertion | Lesser tubercle of humerus |
| Action | Shoulder joint: Arm internal rotation Stabilizes humeral head in glenoid cavity |
| Innervation | Upper and lower subscapular nerves (C5 – C6) |
| Blood supply | Suprascapular artery, axillary artery, subscapular artery |
What is the origin and insertion of subscapularis muscle?
The subscapularis is a large triangular muscle which fills the subscapular fossa and inserts into the lesser tubercle of the humerus and the front of the capsule of the shoulder-joint….
| Subscapularis muscle | |
|---|---|
| Origin | Subscapular fossa |
| Insertion | Lesser tubercle of humerus |
| Artery | subscapular artery |
What is the critical zone of the supraspinatus tendon?
Background: The “critical zone”, a region of speculated vascularity, is situated approximately 10 mm proximal to the insertion of the supraspinatus tendon. Despite its obvious role as an anatomical landmark demarcator, its patho-anatomic nature has been identified as the source of rotator cuff pathology.