Shoulder Impingement
Shoulder impingement occurs when the tendons of the rotator cuff muscles or the bursa (fluid-filled sac) within the shoulder joint become compressed or pinched between the bones of the shoulder. This compression typically occurs during overhead movements, such as reaching or lifting, leading to pain, inflammation, and reduced shoulder mobility. Causes may include repetitive overhead activities, poor posture, muscle imbalances, or structural abnormalities in the shoulder joint.
Symptoms often include pain with overhead movements, weakness, and discomfort when reaching behind the back or sleeping on the affected side. Treatment may involve rest, physical therapy, anti-inflammatory medications, and corticosteroid injections to alleviate pain and improve shoulder function.
Most Common Causes of Shoulder Impingement
Rotator Cuff Tendonitis
Rotator cuff tendonitis, an inflammation of the tendons within the rotator cuff, stands as a prevalent precursor to shoulder impingement. The condition often arises from repetitive overhead movements, overuse, or biomechanical imbalances, provoking irritation and swelling of the affected tendons. Consequently, the subacromial space diminishes, exacerbating impingement symptoms such as pain and limited range of motion.
Effective management typically involves a multifaceted approach, including rest, activity modification, and targeted physical therapy to alleviate inflammation, restore tendon integrity, and optimize shoulder mechanics. By addressing the underlying tendon pathology and associated impingement, individuals can experience relief from discomfort and regain optimal shoulder function.
Subacromial Bursitis
Subacromial bursitis is characterized by inflammation of the bursa sac that cushions the rotator cuff tendons, frequently precedes impingement. This condition can develop due to repetitive overhead motions, trauma, or underlying arthritic conditions, triggering swelling and constriction within the subacromial space. As a result, compression of the rotator cuff tendons occurs, leading to pain, stiffness, and diminished shoulder mobility.
Treatment strategies typically involve anti-inflammatory measures such as rest, ice therapy, and medication to alleviate swelling and pain. Additionally, targeted physical therapy aims to strengthen the surrounding musculature, improve shoulder biomechanics, and restore range of motion, effectively addressing impingement symptoms and facilitating recovery.
Acromion Shape Abnormalities
Variations in acromion shape, particularly types II and III characterized by hooked or curved configurations, predispose individuals to shoulder impingement. These structural abnormalities reduce the subacromial space, increasing the likelihood of impingement as the rotator cuff tendons pass beneath the acromion during shoulder movement. Individuals with such anatomical variations may experience heightened impingement symptoms, necessitating tailored management strategies.
Treatment approaches may encompass targeted exercises to optimize shoulder mechanics, activity modification to reduce exacerbating movements, and, in severe cases, surgical interventions aimed at widening the subacromial space to alleviate discomfort and restore optimal shoulder function. By addressing the underlying anatomical factors contributing to impingement, individuals can achieve long-term relief and improved shoulder function.
- Christopher S. Raffo, MD
Board-Certified Surgeon & Orthopedic & Sports Medicine Specialist - James S. Gardiner, MD
Board-Certified Surgeon & Orthopedic & Sports Medicine Specialist - John Christoforetti, MD, FAAOS
Board-Certified Surgeon & Orthopedic & Sports Medicine Specialist
Comprehensive Care for Shoulder Impingement in Montgomery County, Maryland
Experience relief from shoulder impingement with specialized care at The Centers for Advanced Orthopaedics: Maryland Orthopedic Specialists Division. Our expert team can offer you a personalized treatment plan tailored to alleviate your symptoms and restore shoulder function. Don't let shoulder pain hold you back any longer. Contact us at (301) 515-0900 or schedule your appointment online to begin your journey toward relief and improved shoulder health.