Manubriosternal Joint

Description

Lateral view of sternum illustration manubriosternal and xiphisternal joints

Schematic illustration of the manubriosternal dislocations.

Name

• Manubriosternal joint
• Manubriosternal angle
• Angle of Louis

General

• Secondary cartilaginous joint between two parts of the sternum: the manubrium and the body
• Formed by two irregular articular facets on the inferior manubrium/ superior sternal body
• Between them, a fibrocartilage disc exists that ossifies with age

Action

• Allows a small among of angulation in longitudinal axis
• Slightly increases anterior-posterior diameter of the thorax during inspiration

Ligaments

• Manubriosternal ligament

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Clinical Significance

• Manubrosternial Syndrome
• Sternal Fracture
• Manubriosternal dislocation

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See Also

• Chest Pain Main
• Physical Exam Chest
• Thoracic Anatomy Main

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