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Olympus Lifestyle Co

Condition

Shoulder Instability

A shoulder that dislocates, slips out or feels loose and unsafe? Assessment, a graded strengthening program and clear advice on when surgery is worth considering after a dislocation.

A shoulder is the most mobile joint in the body, and that mobility comes at the cost of stability. Shoulder instability covers a spectrum, from a single traumatic dislocation in a footy match to a shoulder that repeatedly slips or feels loose during everyday movements. Both respond to the right rehabilitation, and for some people surgery has a role.

Understanding shoulder instability

The shoulder’s ball-and-socket joint relies heavily on the muscles of the rotator cuff and shoulder blade, together with the ligaments and labrum, to stay centred. Instability falls into two broad groups:

  • Traumatic instability: follows a significant injury, such as a tackle or fall, where the shoulder dislocates or partially slips, often damaging the labrum and ligaments. This is usually in the front of the shoulder
  • Atraumatic or multidirectional instability: develops without a major injury, often in younger people with naturally loose joints, where the shoulder can slip in several directions and muscle control becomes the key

Hypermobility, repeated overhead sport, and previous dislocations all raise the risk of ongoing problems.

Symptoms we commonly see

  • A sense of the shoulder slipping, catching or about to pop out, especially with the arm overhead or out to the side
  • A history of one or more dislocations or partial slips
  • Pain deep in the shoulder with certain positions or after activity
  • Apprehension or loss of confidence using the arm
  • Clicking, clunking or a sense of looseness
  • Weakness or tiredness of the shoulder with overhead use

Our evidence-based approach

For traumatic first-time dislocations, treatment is a balance between the recurrence risk and what you want to do next, and age and sport matter a lot. For multidirectional instability, physiotherapy-led exercise is the recommended first-line treatment, although the research base is small. Our approach includes:

  1. Assessment of your shoulder, shoulder blade, trunk and general joint mobility, and screening for associated injuries
  2. Clear information about your recurrence risk and options, so decisions about surgery are well informed
  3. Early protection and settling, after a dislocation, followed by restoring movement
  4. Progressive strengthening of the rotator cuff and shoulder blade muscles, plus control and coordination work, as the foundation of a rehab program
  5. Whole-body and trunk strength, since the shoulder relies on the rest of the body for stable positions
  6. Sport-specific progressions, such as overhead, throwing and contact preparation, with taping or bracing where useful
  7. Strength and function testing before return to sport
  8. Referral for imaging or an orthopaedic opinion when your history, age and activity goals suggest surgery should be considered

See our shoulder pain page for other common shoulder problems.

What to expect: recovery timeline

  • After a first dislocation: an initial period of settling, then a structured program, usually over several weeks to a few months before return to sport
  • Loose or multidirectional shoulders: research programs run about 12 weeks, with ongoing strength work to maintain control
  • After stabilisation surgery: timelines are guided by your surgeon’s protocol, usually many months before full return to contact or overhead sport

When to seek help urgently

Go to an emergency department straight away if you think your shoulder is dislocated and it hasn’t gone back, or if it’s very painful and looks deformed. Also seek urgent care for numbness, pins and needles, or a pale, cold or weak arm after an injury.

References

How We Treat This

Sports PhysiotherapyPhysiotherapyStrength and ConditioningPerformance Testing

Q & A

Questions about Shoulder Instability

What's the difference between a dislocation and instability?

A dislocation is when the ball of the shoulder comes fully out of the socket. A subluxation is a partial slip. Instability is the broader problem of a shoulder that doesn't feel secure, either after an injury or because the joint is naturally loose. Which type you have shapes the treatment, so the history of how it started matters.

I've dislocated my shoulder once. Will it happen again?

It might. A review of first-time traumatic anterior dislocations found that around 39 percent went on to have recurrent instability. The risk was much higher in people aged 40 and under, in men and in people with naturally loose joints, and it fell as time since the injury increased. That's why age and activity level matter in deciding on treatment.

Do I need surgery after a first dislocation?

It depends on you. A meta-analysis of randomised trials in young adults (average age about 24) found that stabilisation surgery reduced recurrent instability in the short term compared with conservative care. For many people, especially younger people in contact or overhead sport, a surgical opinion is reasonable early on. For others, a structured rehab program is a good first step. We'll go through your risk factors and goals and refer if surgery looks like the better option.

What if my shoulder is just naturally loose?

For loose shoulders that slip without a major injury (multidirectional instability), exercise-based rehabilitation is the recommended first-line treatment. In a study of 43 people, a 12-week physiotherapy-led exercise program produced large improvements in shoulder function, and a systematic review found that about one in five people who tried physiotherapy went on to need surgery, so most don't.

Can I keep playing sport?

Often, with a plan. Depending on your stage of recovery, we may use taping or bracing and adjust the movements that put the shoulder at risk. Return to contact or overhead sport should be based on strength and control criteria, not just time.

Let's get this sorted

Book an appointment to have your shoulder instability properly assessed.

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