From Tear to Recovery: Understanding Shoulder Injuries and the Path Back to Full Motion
The shoulder is the most mobile joint in the human body — and that mobility comes at a price. Unlike the hip, which sits in a deep, stable socket, the shoulder's ball (the humeral head) rests on a shallow saucer (the glenoid), so roughly 90% of its stability during motion is provided by muscles rather than bone [1]. That trade-off between freedom and stability is why the shoulder is so prone to injury, and why rehabilitation has to be layered, progressive, and closely guided. How Shoulder Injuries Develop Several distinct problems tend to show up in the same joint, and they often overlap: Rotator cuff tendinopathy and tears are the most common cause of shoulder pain. The supraspinatus tendon runs through a narrow corridor called the subacromial space, bordered above by the acromion and coracoacromial ligament and below by the humeral head. When the scapula doesn't rotate or tilt properly, or the humeral head drifts upward, that space narrows and the tendon gets repeatedly...