Glenohumeral Kinematics in Supraspinatus Tears: Challenging the Superior Translation Hypothesis (ptpodcast.com)

• A kinematic study on complete supraspinatus tears found that the humeral head does not translate superiorly during arm elevation.
• This contradicts the traditional hypothesis of superior humeral head migration in rotator cuff tears.
• The findings highlight the need for evidence-based biomechanical assumptions in shoulder rehab.

"A kinematic study reveals that contrary to common belief, the humeral head does not translate superiorly in complete supraspinatus tears during arm elevation. This challenges the traditional hypothesis and highlights the need to reassess biomechanical assumptions in rotator cuff pathology."