Do you ever feel your shoulder popping and wonder why? This is a common issue that can stem from various causes. The shoulder is a complex joint, boasting the largest and most versatile range of motion in the body. It consists of bones, ligaments, cartilage, and tendons that facilitate movement in many directions, but this complexity also makes it prone to instability when movement quality is compromised. As a result, the shoulder is one of the most frequently injured joints, often leading to shoulder pain.
Before jumping to conclusions, consider these questions:
1) Is the popping sensation painful?
2) Have you recently injured your shoulder, leading to pain?
3) Does your shoulder feel stable?
4) Is the popping accompanied by weakness?
Clicking and popping can occur for various reasons. If it’s painless, it may just be harmless joint noise known as crepitus, which is the release of pressure within the joint—similar to when you crack your knuckles. However, if the popping is painful, it could indicate irritation.
Overuse of the shoulder through repetitive motions can lead to irritation and inflammation of the tissues within the joint. Common examples include bursitis and tendinitis, which are frequently seen as sports injuries. These conditions often arise from movement compensations combined with repetitive activities, causing swelling in the bursa sac and rotator cuff tendons. The bursa are fluid-filled sacs that cushion joints, while the tendons are cords that connect muscles to bones. Over time, rotator cuff tendons can wear down, much like the sole of a shoe, eventually leading to tears if untreated. This can result in increased pain, limitations in exercise or training, and even difficulties with daily activities like sleeping or using the arm.
Popping accompanied by pain can also be due to degenerative arthritis, a condition caused by years of wear and tear. In arthritis, the cartilage that protects bones wears down, becoming rough and leading to increased friction in the joint. This friction can cause injury as the joint surfaces rub together like sandpaper, leading to joint inflammation and shoulder pain. Left untreated, arthritis can limit your ability to exercise and perform daily activities.
Shoulder pain and impingement can occur when the space between the top of the shoulder blade (acromion) and the top of the upper arm bone (head of the humerus) narrows due to movement compensations. This narrowing causes swelling and inflammation, further reducing space and leading to the pinching of the rotator cuff tendons and bursa. If not treated, this condition can limit exercise and interfere with daily activities.
Shoulder instability happens when the head of the upper arm bone (humerus) cannot stay centered in the shoulder socket (glenoid) during movement. This instability places extra strain on various structures within the shoulder, potentially irritating the cartilage (labrum) and causing pain and weakness. Left unchecked, this can increase the risk of developing arthritis.
Despite all these potential issues, the key point is not just understanding these conditions but figuring out why the popping, tendinitis, bursitis, arthritis, impingement, or instability started in the first place.
Small rotator cuff tears, labral tears, arthritis, and joint damage are common in the shoulder, but there is still plenty you can do (without surgery) to alleviate pain and return to the activities you enjoy.
The crucial question to ask yourself is, “What movement compensations am I making that are irritating my shoulder?” By addressing these compensations with the help of a skilled sports physical therapist, you can continue to exercise and maintain an active lifestyle.