Controversies in the Overhead Athlete's Shoulder (AANA22)-The Disabled Throwing Shoulder

The Disabled Throwing Shoulder_ Pathomehanics and Scapular Dyskinesis

Video Transcription

Video Summary

The talk focuses on the mechanics and pathoanatomy of the disabled throwing shoulder, emphasizing internal impingement as the key issue causing posterior labral injuries, rather than superior labral tears alone. Scapular protraction and posterior humeral head translation contribute to this condition. Proper kinetic chain function, especially optimal stride length, core stability, and scapular motion, is critical for force transfer and shoulder health. Measuring external rotation accurately, including forearm pronation, is essential. Studies show most throwing shoulder labral injuries involve posterior regions. Clinical management requires thorough evaluation of kinetic chain, scapular positioning, glenohumeral rotation, and complete labrum examination to avoid missed injuries and failed surgeries.

Asset Caption

William Ben Kibler, M.D.

Keywords

disabled throwing shoulder

internal impingement

posterior labral injuries

kinetic chain function

scapular motion