Scapular Joints and Stability

Scapular Joints Overview

• The joints of the scapula typically move in conjunction with the shoulder or glenohumeral joint during upper limb movements.
• There are two primary synovial joints that provide the scapula with a high degree of mobility.
• Stability for these scapular joints is primarily provided by the muscles that attach directly to the scapula.

Sternoclavicular Joint Stability

• The stability of the sternoclavicular joint is maintained by the following structures:
  • Interclavicular ligament
  • Anterior sternoclavicular ligament
  • Costoclavicular ligament
  • Posterior sternoclavicular ligament

Acromioclavicular Joint Stability

• The following structures contribute to the stability of the acromioclavicular joint:
  • Acromioclavicular ligament
  • Coracoclavicular ligament

Questions & Discussion

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