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Shoulder impingement is the most prevalent Diagnosis accounting of ___ to ___ percent of reported shoulder pain.
40% to 69% percent
Traumatic shoulder dislocations account for ___ to ___ of shoulder pain.
15 to 25% of shoulder pain.
Persistant nature of shoulder pain may be the result of
- 1)Degenerated changes to the shoulder's capsulo-ligamentous structures.
- 2)Articular cartilage
- 3)Tendons as the result of altered shoulder mechanics.
As many as ___% of individuals suffering shoulder dislocations experience recurring instability within____ ____ and are at risk to develop gleno-humeral osteoarthritis secondary _____ ________ __ __ ______ _______ ______
- 70%...Two years...gleno-humeral osteoarthritis .....
- increased motion at the gleno-humeral joint.
Degenerated changes may also affect the _____ _____
by weakening the tendon over time through intrinsic and extrinsic risk factors such as:
- Rotator cuff
- >Repetitive overhead use,
- >increased loads raised above shoulder height,
- >forward head
- >rounded shoulder posture,
- >altered scapula kinematics
- >muscle activity.
>Repetitive overhead use, >increased loads raised above shoulder height, >forward head >rounded shoulder posture, >altered scapula kinematics >muscle activity.
these factor are theorized to?
Overload the shoulder muscles, especially the rotator cuff leading to shoulder pain and dysfunction
Shoulder injury can be broadly categorized in to those that
Affect the rotator cuff muscles or those that effect the capsulo--ligamentous structures.
Rotator cuff strains occur when:
Muscle group is overexerted causing micro-damage within the muscle belly and tendon resulting in inflammation and decreased muscle function.
Injuries to the capsulo-ligamentous structures leads to?
Deficits in the passive stabilizing structures of the shoulder such as the anterior, posterior or inferior glen-humeral- ligaments and the glenoid labrum.
What injuries are devastating to the ability of the shoulder to facilitate function of the upper extremity in reaching forward or overhead tasks?
Glenoid- labrum and Glenoidhumeral ligaments.
Sub-acromial impingent syndrome a common diagnoses and broadly defined as compression of the structures that run beneath the coracoaromial arch most often in a derease in the sub-acromial space