Winging of Scapula

Anatomy of Scapula

Scapula serves as the attachment site for 17 muscles
- Its normal function to stabilize the scapula to the thorax, provide power to the upper limb and synchronize glenohumeral motion.
Normal Movements :
- Elevation and Upward rotation
  - By Trapezius muscle.
- Scapular Protraction (Anterior and Lateral motion)
  - By Serratus anterior and Pectoralis major and minor muscle
- Scapular Retraction (Medial motion)
  - By Rhomboid major and minor muscles.

Types of Scapular Winging :

Two types based on direction of Inferior border of scapula
- Medial winging
  - Serratus anterior (long thoracic nerve)
- Lateral winging
  - Trapezius (CN XI – spinal accesory nerve)