Shoulder Essay

2007 WordsMar 16, 20139 Pages
Rotation Before Elevation Anatomy and mechanics of movement Component movements of elevation Muscle function and dysfunction Evaluation of rotation Treatment using rotation Complex Movements – Elevation and reaching behind The Complex Shoulder Rotation Before Elevation FORCE Couples Two forces moving in opposite directions that creates a non linear movement = rotation – Glenohumeral (modified) – Scapula sesamoid bone Robert Donatelli PhD PT OCS Rotation Brems and Browne patients need a minimum of 35 degrees to 45 degrees of external rotation in order to maintain functional overhead movements and avoid subacromial impingement Rotation Research Vermeulen reported that the loss of glenohumeral joint mobility in adhesive capsulitis is probably due to capsular adhesions, which limit external rotation of the head of the humerus Mao demonstrated that restoring passive external rotation showed the reappearance or enlargement of the axillary recess and smoother capsular margins. Increased extensibility of the axillary recess is important in restoring active elevation It has been recognized that an "obligatory" axial external rotation of the humerus is necessary to clear the greater tuberosity from the acromial arch and to accommodate the retroverted articular surface of the humerus to gain an optimum position for glenoid contact and stability Dissection Studies of Rotation Clinical Importance Shortening the anterior capsule 7 mm resulted in tightening of the capsule. Tightening of the anterior capsule resulted in loss of external rotation, which is the area that is most restricted in patients with adhesive capsulitis of the shoulder. Cyriax described a capsular pattern in the shoulder that is specific to adhesive capsulitis. He described the movement with the greatest percentage of limitation was passive external rotation, followed by elevation in the

More about Shoulder Essay

Open Document