Shoulder Impingement Syndrome
Los Angeles
What is shoulder impingement syndrome?
Impingement in the shoulder can occur externally and internally. External shoulder impingement syndrome involves the rotator cuff tendon getting pinched underneath the overlying bone called the acromion. Internal shoulder impingement syndrome usually occurs when the ball of the shoulder joint abnormally pinches the socket.
What are the symptoms of impingement syndrome?
- Classic symptoms of shoulder impingement include pain radiating from the outer arm to several inches below the shoulder.
- You may also experience pain at the front, side or back of the shoulder.
- Symptoms are usually aggravated by activities that require reaching behind and across the body and by raising the arms over the head.
What causes shoulder impingement?
Mechanical changes involving the movement of the shoulder can result in external or internal impingement of the shoulder. It can result from activities that require repetitive shoulder movements such as throwing a ball. This condition is common among overhead athletes in sports such as swimming, baseball, volleyball, and tennis.
What treatment options are available?
If the symptoms persist, it is recommended to schedule a consultation with Dr. Yoon. A comprehensive evaluation will be performed and a plan of care can then be discussed based on the findings.
What is shoulder impingement syndrome?
It occurs when shoulder tissues (often the rotator cuff tendon) become compressed (“pinched”) either externally under the acromion or internally when the ball of the shoulder joint presses against the socket during abnormal motion.
What are the typical symptoms of impingement?
Pain radiating down the arm a few inches below the shoulder, pain at the front, side, or back of the shoulder, and discomfort aggravated by raising the arms overhead or reaching behind or across the body.
What causes shoulder impingement?
Repetitive overhead shoulder motions (from sports or work), mechanical changes in shoulder movement, or anatomical variations in shoulder bones. Overuse and repeated motion are common contributing factors.
How is impingement syndrome treated?
Rest, activity modification, medications, and physical therapy are typically first line interventions. Injections including biologic therapy may be an option as well. If symptoms persist, a consultation with Dr. Yoon can help develop a personalized plan.
What is the difference between external vs internal impingement?
External impingement refers to tissue being pinched under a bone (the acromion) outside the joint, while internal impingement occurs within the joint between the ball and socket. Each type presents differently and may require tailored treatment approaches.
When should I see a specialist?
If pain persists despite rest or conservative therapy, or if you experience weakness or loss of function — especially if rotator cuff or labral damage is suspected — a specialist evaluation is recommended.