1 / 12

The Shoulder

The Shoulder. Anatomy. Bones. 4 Articulations – AC, GH, SC, and Sub Ac Glenoid Labrum – fibrocartilagenous rim of glenoid fossa 50% of socket provided by Labrum. Capsule. Glenoid margin to humeral anatomical neck Lax Lined with synovial membrane Becomes weaker with age

kura
Download Presentation

The Shoulder

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. The Shoulder Anatomy

  2. Bones • 4 Articulations – AC, GH, SC, and Sub Ac • Glenoid Labrum – fibrocartilagenous rim of glenoid fossa • 50% of socket provided by Labrum

  3. Capsule • Glenoid margin to humeral anatomical neck • Lax • Lined with synovial membrane • Becomes weaker with age • Coracohumeral ligament – broad thickening of upper capsule

  4. Ligaments • Superior, middle and inferior Glenohumeral Ligaments • Coracoacromial - forms the coracoacromial arch • Transverse humeral

  5. Anterior Scapula Muscle Attachments

  6. Posterior Scapula Muscle Attachments

  7. Anterior Musculature • Supraspinatus • Subscapularis • Biceps • Coracobrachialis • Pectoralis Major and Minor • Deltoid

  8. Posterior Musculature • Infraspinatus • Teres Minor • Triceps

  9. Rotator Cuff • Reduces AP shearing • Subscapularis most powerful • Inferior rotator cuff controls centring of the humeral head in elevation Infraspin. Subscap. Teres minor

  10. Bursa • Main pain generators of shoulder? • Subscapula bursa – communicates with capsule • Subacromial bursa – facilitates movt between coracoacromial arch + subjacent supraspinatus + shoulder joint

  11. Neurology • Supplied by C5 • C4 AC joint Dermatomes • C4 top of shoulder • C5 lat asp of arm to wrist Muscles • C5 Deltoid, supraspinatus, infraspinatus • C6 Biceps, Subscapularis • C7 Triceps, Lat Dorsi, Pec Major, Teres Major

  12. Surface Markings • Supraspinatus insertion • Subscapularis insertion • Infraspinatus insertion • Acromion • Coracoid • AC joint line – sagital plane

More Related