What is the most common cause of shoulder pain and dysfunction in patients over 40?

What is the most common cause of shoulder pain and dysfunction in patients over 40?

• A. Rotator cuff tear
• B. Dislocation
• C. Bursitis
• D. Adhesive capsulitis

Answer: (A)

In adults over 40, degeneration and tearing of the rotator cuff tendons is the most common source of shoulder pain and dysfunction. As we age, the tendons, especially the supraspinatus, undergo wear and microtrauma that can progress from tendinopathy to partial-thickness and then full-thickness tears. This impairs the primary shoulder abductor mechanism, leading to pain with lifting or reaching overhead and noticeable weakness, which is the hallmark of rotator cuff pathology. Why this explains the question best: other conditions listed occur less frequently as the source of chronic shoulder pain in this age group. Dislocations are typically traumatic and more common in younger patients. Bursitis can cause shoulder pain but is often related to impingement or overuse and not the overarching cause of dysfunction in most older adults. Adhesive capsulitis (frozen shoulder) causes global stiffness and a distinctive loss of motion, but its prevalence is lower than rotator cuff disease in this population. Ultrasound, when used, often shows thinning or a focal defect in the rotator cuff tendons, most commonly the supraspinatus, with possible bursal fluid if inflammation or tearing is present. This imaging pattern supports the clinical picture of rotator cuff tear as the leading cause of shoulder pain and dysfunction in this age group.

In adults over 40, degeneration and tearing of the rotator cuff tendons is the most common source of shoulder pain and dysfunction. As we age, the tendons, especially the supraspinatus, undergo wear and microtrauma that can progress from tendinopathy to partial-thickness and then full-thickness tears. This impairs the primary shoulder abductor mechanism, leading to pain with lifting or reaching overhead and noticeable weakness, which is the hallmark of rotator cuff pathology.

Why this explains the question best: other conditions listed occur less frequently as the source of chronic shoulder pain in this age group. Dislocations are typically traumatic and more common in younger patients. Bursitis can cause shoulder pain but is often related to impingement or overuse and not the overarching cause of dysfunction in most older adults. Adhesive capsulitis (frozen shoulder) causes global stiffness and a distinctive loss of motion, but its prevalence is lower than rotator cuff disease in this population.

Ultrasound, when used, often shows thinning or a focal defect in the rotator cuff tendons, most commonly the supraspinatus, with possible bursal fluid if inflammation or tearing is present. This imaging pattern supports the clinical picture of rotator cuff tear as the leading cause of shoulder pain and dysfunction in this age group.