Scapular medial rotation

Last revised by Edward Zhou on 07 Oct 2021

Scapular medial rotation describes the rotation of the scapula (scapulothoracic joint) such that the glenoid fossa faces downwards - thus it may also be called downward rotation. It is the opposite of scapular lateral rotation - similarly, this motion requires motion at the sternoclavicular and acromioclavicular joints.

The mechanism of medial rotation is usually gravity, with control of the motion facilitated by active lengthening of the trapezius and serratus anterior. Occasionally, if this is insufficient, the levator scapulae, rhomboid major and minor, and pectoralis minor muscles are recruited as prime movers to effect medial rotation 1,2.

ADVERTISEMENT: Supporters see fewer/no ads

Cases and figures

  • Figure 1: Scapulothoracic joint movements
    Drag here to reorder.
  • Figure 2: Muscles that position that pectoral girdle (diagram)
    Drag here to reorder.
  • Updating… Please wait.

     Unable to process the form. Check for errors and try again.

     Thank you for updating your details.