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Shoulder Conditions - PowerPoint PPT Presentation

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Shoulder Conditions. Chapter 11. Articulations. Sternoclavicular (SC) Acromioclavicular (AC) Coracoclavicular (CC) Glenohumeral (GH) Scapulothoracic. Sternoclavicular Joint. Surrounded anteriorly and posteriorly by 4 ligaments Interclavicular Costoclavicular Anterior sternoclavicular

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Shoulder Conditions

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  • Sternoclavicular (SC)
  • Acromioclavicular (AC)
  • Coracoclavicular (CC)
  • Glenohumeral (GH)
  • Scapulothoracic
sternoclavicular joint
Sternoclavicular Joint
  • Surrounded anteriorly and posteriorly by 4 ligaments
    • Interclavicular
    • Costoclavicular
    • Anterior sternoclavicular
    • Posterior sternoclavicular
  • SC enables rotation of the clavicle with respect to the sternum
acromioclavicular joint
Acromioclavicular Joint
  • Acromion process of the scapula with the distal clavicle is the joint
    • Superior and Inferior acromioclavicular ligaments
    • Coracoacromial ligament
  • AC enables limited motion in all three planes of movement
coracoclavicular joint
Coracoclavicular Joint
  • Coracoid process of the scapula and the inferior surface of the clavicle.
    • Coracoclavicular ligament
  • Resists upward movement of the clavicle, downward movement of the scapula, and anteroposterior movement of the clavicle or scapula.
glenohumeral joint
Glenohumeral Joint
  • Articulation between the glenoid fossa of the scapula and the head of the humerus
    • Superior, middle, and inferior glenohumeral ligaments
  • Allows just about all ranges of motion in all three planes
scapulothoracic joint
Scapulothoracic Joint
  • Muscles attaching to the scapula from the thoracic trunk area allow the scapula to move
  • Stabilizes the shoulder-
  • Permits many movements of the shoulder
  • Subcoracoid
  • Subscapularis
  • Subacromial
    • Cushion the rotator cuff muscles from overlying bone





Horizontal Adduction

Horizontal Abduction

Medial rotation (internal)

Lateral rotation (external)

shoulder movements
Shoulder Movements
  • Scapulohumeral rhythm
clavicular fractures
Clavicular Fractures
  • Blow or fall on the point of the shoulder
  • Figure 8 brace is worn for 4 to 6 weeks
  • Pain will be persistent on palpation and active movements
scapular fractures
Scapular Fractures
  • Spine of scapula, acromion process, coracoid process, or the glenohumeral joint
  • Either direct trauma or a forceful contraction of the attaching muscle
epiphyseal and avulsion fractures
Epiphyseal and Avulsion Fractures
  • Growth plates do not close until 18 to 25 years of age
  • Excessive movements of these plates can cause fractures
humeral fractures
Humeral Fractures
  • Violent compressive forces from a direct blow
  • Fracture is commonly found in the surgical neck