Rotator Cuff: Difference between revisions
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= Description = | = Description = | ||
Rotator cuff is a common name for the group of 4 muscles and their tendons that provide strength and stability during motion of the shoulder. The muscles arise from the scapula and connect to the head of the humerus, forming a cuff at the glenohumeral joint. | Rotator cuff is a common name for the group of 4 muscles and their tendons that provide strength and stability during motion of the shoulder. The muscles arise from the scapula and connect to the head of the humerus, forming a cuff at the glenohumeral joint. | ||
= Anatomy = | = Anatomy = | ||
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|- | |- | ||
! scope="col" | | ! scope="col" | | ||
! scope="col" | Origen on scapula | ! scope="col" | Origen on scapula | ||
! scope="col" | Insertion on humerus | ! scope="col" | Insertion on humerus | ||
! scope="col" | Primary function | ! scope="col" | Primary function | ||
|- | |- | ||
| M. supraspinatus | | M. supraspinatus | ||
| supraspinous fossa | | supraspinous fossa | ||
| superior facet of greater tuberosity | | superior facet of greater tuberosity | ||
| abduction | | abduction | ||
|- | |- | ||
| M. infraspinatus | | M. infraspinatus | ||
| infraspinous fossa | | infraspinous fossa | ||
| middle facet of greater tuberosity | | middle facet of greater tuberosity | ||
| exorotation | | exorotation | ||
|- | |- | ||
| M. teres minor | | M. teres minor | ||
| lateral border of scapula | | lateral border of scapula | ||
| inferior facet of greater tuberosity | | inferior facet of greater tuberosity | ||
| exorotation | | exorotation | ||
|- | |- | ||
| M. subscapularis | | M. subscapularis | ||
| subscapular fossa | | subscapular fossa | ||
| lesser tuberosity or humeral neck | | lesser tuberosity or humeral neck | ||
| endorotation | | endorotation | ||
|} | |} | ||
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<br> | <br> | ||
The rotator cuff muscles are used in a variety of upper extremity movements including flexion, abduction, internal rotation and external rotation. | The rotator cuff muscles are used in a variety of upper extremity movements including flexion, abduction, internal rotation and external rotation. They are essential players in almost every type of shoulder movement. Balanced strength and flexibility in each of the four muscles is vital to maintain functioning of the entire shoulder girdle. | ||
<br> | <br> | ||
Cranial to the rotator cuff, there is a bursa that covers and protects the muscle tendons as they are in close contact to the surrounding bones. | |||
<br> | <br> | ||
= Common injuries to the rotator cuff = | |||
• | • [[Rotator_Cuff_Tears|Rotator cuff tears]]<br>• [[Rotator_Cuff_Tendinopathy|Rotator cuff tendinopathy]]<br>• [[Rotator_Cuff_Tendinitis|Rotator cuff tendinitis]]<br> | ||
== Key Research == | == Key Research == | ||
Revision as of 11:50, 29 August 2011
Description[edit | edit source]
Rotator cuff is a common name for the group of 4 muscles and their tendons that provide strength and stability during motion of the shoulder. The muscles arise from the scapula and connect to the head of the humerus, forming a cuff at the glenohumeral joint.
Anatomy[edit | edit source]
The rotator cuff muscles include:
| Origen on scapula | Insertion on humerus | Primary function | |
|---|---|---|---|
| M. supraspinatus | supraspinous fossa | superior facet of greater tuberosity | abduction |
| M. infraspinatus | infraspinous fossa | middle facet of greater tuberosity | exorotation |
| M. teres minor | lateral border of scapula | inferior facet of greater tuberosity | exorotation |
| M. subscapularis | subscapular fossa | lesser tuberosity or humeral neck | endorotation |
The rotator cuff muscles are used in a variety of upper extremity movements including flexion, abduction, internal rotation and external rotation. They are essential players in almost every type of shoulder movement. Balanced strength and flexibility in each of the four muscles is vital to maintain functioning of the entire shoulder girdle.
Cranial to the rotator cuff, there is a bursa that covers and protects the muscle tendons as they are in close contact to the surrounding bones.
Common injuries to the rotator cuff[edit | edit source]
• Rotator cuff tears
• Rotator cuff tendinopathy
• Rotator cuff tendinitis
Key Research[edit | edit source]
add links and reviews of high quality evidence here (case studies should be added on new pages using the case study template)
Resources
[edit | edit source]
add appropriate resources here
Recent Related Research (from Pubmed)[edit | edit source]
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References[edit | edit source]
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