Dislocated shoulder
| Dislocated shoulder | |
|---|---|
| Anterior dislocation of the left shoulder. | |
| Specialty | Emergency medicine, orthopedics |
| Symptoms | Shoulder pain |
| Complications | Bankart lesion, Hill-Sachs lesion, rotator cuff tear, axillary nerve injury |
| Types | Anterior, posterior, inferior, superior |
| Causes | Extreme rotation, traumatic impact |
| Diagnostic method | Based on symptoms, X-rays |
| Treatment | Shoulder reduction, arm sling |
| Medication | Procedural sedation and analgesia, intraarticular lidocaine |
| Prognosis | Recurrence common in young people |
| Frequency | 24 per 100,000 per year (US) |
A dislocated shoulder is a condition in which the head of the humerus is detached from the glenoid fossa. The shoulder is the most commonly dislocated joint in the human body, comprising 50% of all joint dislocations. Symptoms include shoulder pain and instability.
There are multiple types of shoulder dislocation, with anterior dislocation being by far the most common, comprising 97% of all shoulder dislocations. Less common types includes posterior (2-4% of all shoulder dislocations) and inferior shoulder dislocation (<1% of all shoulder dislocations), as these latter types tend to involve a traumatic accident and/or impact. Shoulder dislocations can also be divided into subluxation (partial dislocation) or full dislocation.