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  1. Shoulder Instability - Johns Hopkins Medicine

    Shoulder instability usually occurs when the lining of the shoulder joint (the capsule), ligaments or labrum become stretched, torn or detached, allowing the ball of the shoulder joint (humeral head) to …

  2. Chronic Shoulder Instability and Dislocation - OrthoInfo - AAOS

    Shoulder instability occurs when the head of the upper arm bone is forced out of the shoulder socket. Once a shoulder has dislocated, it is vulnerable to repeat episodes. When the shoulder slips out of …

  3. Shoulder Instability - Massachusetts General Hospital

    Learn about shoulder instability including what it is, common causes, different treatment options. Request an appointment or call to learn more.

  4. Shoulder Instability - Physiopedia

    Atraumatic (non-traumatic) shoulder instability is a subclassification of glenohumeral joint instability, encompassing those for whom trauma is not considered the primary aetiology.

  5. Shoulder instability - Mayo Clinic Orthopedics & Sports Medicine

    The humeral head is the top part of the upper arm bone (humerus) while the glenoid is a very shallow socket located on the shoulder blade (scapula). The term “shoulder instability” is used to describe …

  6. How Shoulder Instability Can Affect Your Shoulder - WebMD

    Sep 18, 2024 · What causes shoulder instability, and how is it treated? Find out more in our shoulder instability guide.

  7. Shoulder instability: Types, causes, and treatments

    May 1, 2024 · What is a shoulder instability, and how do they occur? Read on to learn more about this shoulder joint injury, including the different types, treatments, and rehabilitation.

  8. What Is Shoulder Instability and What to Do About It | Banner

    Aug 5, 2025 · Here’s what to know about shoulder instability, its causes and how to treat it. What is shoulder instability? Your shoulder is a ball-and-socket joint made up of the upper arm bone …

  9. Shoulder Instability: Symptoms & Causes | NewYork-Presbyterian

    What is Shoulder Instability? The shoulder joint is made up of a complex network of bones, ligaments, tendons, and muscles that stabilize the joint and keep it in alignment. Shoulder instability occurs with …

  10. Shoulder Instability - OrthoPedia Patient

    Learn about shoulder instability with these educational videos, including a condition overview, treatments, and surgical animations and demonstrations.