Shoulder Subluxation

Shoulder subluxation is a partial dislocation where the humeral head slips partially out of the glenoid socket and then returns to position. It can occur from acute trauma or from underlying ligamentous laxity. Subluxation is distinct from full dislocation but can cause significant instability and functional impairment.

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Typical Recovery Time

3–6 months for return to sport; longer if surgery is required

Symptoms

•Sudden sensation of the shoulder slipping or "going out"
•Momentary sharp pain followed by aching
•Feeling of arm weakness or "deadness" (dead arm syndrome)
•Apprehension with certain arm positions
•Repeated episodes with overhead activity

Common Causes

•Acute trauma (fall on outstretched hand, collision)
•Ligamentous laxity or hypermobility
•Prior full dislocation
•Repetitive overhead stress in athletes
•Muscle weakness or fatigue

Treatment Options

1Shoulder stabilization physical therapy

2Activity modification and bracing during healing

3Proprioceptive training

4Surgical stabilization (Bankart repair) for recurrent cases

5Labral repair if associated pathology is found

When to See a Doctor

See a provider after any subluxation episode to assess for labral or ligamentous injury, especially if episodes are recurring.

Frequently Asked Questions

What is a shoulder subluxation?

A shoulder subluxation is a partial dislocation where the ball of the shoulder briefly slips out of the socket and then returns. It can cause pain and a feeling of instability. This is common in athletes and people with loose ligaments.

What causes a shoulder subluxation?

It is often caused by trauma, repetitive overhead motion, or ligament laxity. Sports like basketball, football, and swimming increase the risk. Previous dislocations also make subluxation more likely.

What are the symptoms?

Symptoms include a feeling that the shoulder slips or shifts, pain, and weakness. Some people notice clicking or instability during movement. Symptoms may occur with certain positions or activities.

How is it treated?

Treatment usually includes physical therapy to strengthen the shoulder and improve stability. Activity modification is important early on. Surgery may be considered for repeated episodes or ongoing instability.

When can I return to sports?

Return to sports depends on stability, strength, and symptom control. Many athletes return within weeks to months with proper rehab. A gradual return helps reduce the risk of recurrence.