Scapular dyskinesis is detrimental to shoulder tendon properties and joint mechanics in a rat model

Scapular dyskinesis is detrimental to shoulder tendon properties and joint mechanics in a rat model.

Shoulder tendon injuries are frequently seen in the presence of abnormal scapular motion, termed scapular dyskinesis. The cause and effect relationship between scapular dyskinesis and shoulder injury has not been directly defined. We developed and used an animal model to examine the initiation and progression of pathological changes in the rotator cuff and biceps tendon. Sixty male Sprague-Dawl...

Effect of Scapular Dyskinesis on Supraspinatus Tendon Healing in a Rat Model

Introduction Rotator cuff tears are common conditions that often require surgical repair to improve function and relieve pain. Unfortunately, despite pain relief, the success associated with repair integrity is mixed, with 5-95% of patients having recurrent tears, resulting in decreased strength and function. Several factors may contribute to repair failure including age, tear size, and time fr...

Effect of Scapular Dyskinesis on Supraspinatus Tendon Healing in a Rat Model

Scapular dyskinesis and its relation to shoulder pain.

Scapular dyskinesis is an alteration in the normal position or motion of the scapula during coupled scapulohumeral movements. It occurs in a large number of injuries involving the shoulder joint and often is caused by injuries that result in the inhibition or disorganization of activation patterns in scapular stabilizing muscles. It may increase the functional deficit associated with shoulder i...

Scapular dyskinesis and its relation to shoulder injury.

The scapula plays a key role in nearly every aspect of normal shoulder function. Scapular dyskinesis-altered scapular positioning and motion-is found in association with most shoulder injuries. Basic science and clinical research findings have led to the identification of normal three-dimensional scapular kinematics in scapulohumeral rhythm and to abnormal kinematics in shoulder injury, the dev...