Shoulder Dislocation and Instability Concepts

The video tutorial covers various types of shoulder dislocations and subluxations, including anterior, posterior, and inferior dislocations. It explains the mechanisms of injury, associated lesions like Bankart and Hill-Sachs, and the recurrence rates. The tutorial also discusses shoulder instability, its types, and management strategies, emphasizing physiotherapy and surgical options. Key diagnostic signs and tests for each type of dislocation are highlighted, along with potential complications such as nerve injuries and rotator cuff tears.

Which type of shoulder dislocation is most common?

• Inferior shoulder dislocation

• Shoulder separation

• Posterior shoulder dislocation

• Anterior shoulder dislocation

What is the typical mechanism of injury for an anterior shoulder dislocation?

• Adduction and internal rotation

• Hyperextension and abduction

• Flexion and internal rotation

• Abduction, extension, and external rotation

What lesion is commonly associated with anterior shoulder dislocation?

• Hill-Sachs lesion

• Lesser tuberosity fracture

• Reverse Bankart lesion

• Rotator cuff tear

What is a common cause of posterior shoulder dislocation?

• Direct blow to the shoulder

• Falling on an outstretched hand

• Seizures or electric shock

• Repetitive overhead activity

Which sign is indicative of a posterior shoulder dislocation on an X-ray?

• Hill-Sachs lesion

• Bankart lesion

• Light bulb sign

• Sulcus sign

In what position is the arm typically found during an inferior shoulder dislocation?

• Adducted and internally rotated

• Abducted between 110 and 160 degrees

• Flexed and externally rotated

• Extended and internally rotated

What is the primary treatment for inferior shoulder subluxation?

• Immobilization with a sling

• Physiotherapy and electric stimulation

• Surgical intervention

• Corticosteroid injections

What type of shoulder instability is characterized by general hyperlaxity?

• Posterior shoulder instability

• Inferior shoulder instability

• Anterior shoulder instability

• Multi-directional shoulder instability

Which test is used to diagnose anterior shoulder instability?

• Apprehension test

• Sulcus sign

• Jerk test

• Light bulb sign

What is a common symptom of posterior shoulder instability?

• Visible deformity

• Positive sulcus sign

• Pain during blocking movements

• Increased external rotation