About shoulder instability and dislocation
The shoulder is the most mobile joint in the body, and that freedom comes at a cost. The ball at the top of the arm bone sits on a shallow socket, held there by the labrum (a rim of cartilage), the joint capsule and ligaments, and the rotator cuff muscles. When any of these are stretched or torn, the ball can slide partway out (a subluxation) or all the way out (a dislocation).
Most instability starts with a fall or collision that forces the arm up and back, which is why it shows up so often in contact and overhead sports. Some people instead have naturally loose joints and develop a sense of the shoulder shifting without a single big injury.
The right plan depends on how the shoulder became unstable, how often it happens, and what you need it to do. A first-time event in a less active adult is managed very differently from repeated dislocations in a teenage football or lacrosse player.
Common symptoms
- A feeling that the shoulder slips, catches, or gives way
- Apprehension or fear when the arm is raised overhead and rotated back
- Pain, weakness, or a dead-arm sensation after throwing or reaching
- Clicking or clunking deep in the joint
- A shoulder that has come fully out and needed to be put back in
Common causes and risk factors
- A previous dislocation that stretched or tore the labrum and capsule
- Contact sports, falls on an outstretched arm, or tackling injuries
- Repetitive overhead activity such as swimming, throwing, or volleyball
- Naturally loose ligaments throughout the body
- Weakness or poor control of the rotator cuff and shoulder blade muscles
How we diagnose it
Our physicians begin with a careful history of each episode and an exam that checks motion, strength, and specific instability tests. Diagnostic ultrasound at the exam table lets us look at the rotator cuff, biceps tendon, and parts of the joint while you move, and it can reveal fluid or tendon injury that came with the dislocation. X-rays are important after a dislocation to check for fractures of the ball or socket, and an MRI, often with contrast, is the best way to see the labrum and assess bone loss when surgery is being considered.
How Propel treats shoulder instability and dislocation
For many people, especially after a first episode or with looser joints, treatment starts with a brief period of protection followed by a structured rehabilitation program. The focus is on rotator cuff strength, shoulder blade control, and gradually rebuilding confidence in the positions that feel unsafe. We adjust sport and lifting so you can stay active while the shoulder gets stronger.
When pain from an associated tendon or joint problem slows rehab, an ultrasound-guided injection or PRP may help settle it, though neither one tightens a loose joint on its own. Young athletes with repeated dislocations, and anyone with a large labral tear or meaningful bone loss, usually do better with surgical stabilization. In those cases we explain why, arrange the referral to an orthopedic shoulder surgeon, and stay involved in rehab afterward.
What to expect at your visit
- 1.
We listen first
Your visit opens with a real conversation: how the problem started, what you have already tried, and the activity you want back.
- 2.
Exam and in-office ultrasound
A hands-on exam, then ultrasound at the exam table, often while you move, so your physician can see the tendon, joint, or nerve involved.
- 3.
A clear diagnosis and plan
You leave knowing what is wrong and what your options are, from strength-based rehab to procedures, and why we recommend each one.
- 4.
Treatment and follow-through
Most procedures happen here in the office. We coordinate with your physical therapist and check progress against the goals you set.
Questions about shoulder instability and dislocation
- Do I need surgery after my first shoulder dislocation?
- Not always. The decision depends on your age, your sport, and what imaging shows. Young athletes in contact or overhead sports have a high chance of it happening again, so early surgical discussion is often reasonable. Many others do well with a good rehab program.
- Should I pop my shoulder back in myself?
- It is safer to have a dislocated shoulder reduced by a trained clinician, ideally after an X-ray, because a fracture can be present. If it goes back in on its own, get it checked soon so we can look for damage.
- Can PRP fix a loose shoulder?
- No. PRP may help an irritated tendon or a partial tear that comes along with instability, but it does not repair a torn labrum or tighten a stretched capsule. Strength work or surgery addresses the instability itself.