Shoulder Dislocation: Anterior vs Posterior

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What is the gender distribution for traumatic anterior glenohumeral dislocations?

80% male, 20% female

72% male, 28% female (correct)

60% male, 40% female

50% male, 50% female

When is recurrent anterior glenohumeral dislocation more likely to occur?

After the age of 30

After the age of 40

Within 2 years of the first dislocation event (correct)

Within 1 year of the first dislocation event

What is the main ligamentous restraint to anterior translation during shoulder dislocation?

Coracohumeral ligament

Superior glenohumeral ligament

Middle glenohumeral ligament

Inferior glenohumeral ligament (correct)

What might be observed in the lateral deltoid region due to a shoulder dislocation?

Loss of sensation Signup and view all the answers

What is a common mechanism of injury for traumatic anterior glenohumeral dislocations?

Abduction and external rotation of the arm Signup and view all the answers

Which test is associated with an increased risk of recurrent instability if positive six weeks after an anterior glenohumeral dislocation event?

Apprehension test Signup and view all the answers

What type of exercises should be commenced early for posterior dislocation?

Motor control and proprioceptive exercises for rotator cuff and scapular muscles Signup and view all the answers

What symptom may indicate posterior subluxation/instability?

Slipping feeling with pushing Signup and view all the answers

What is the specific management approach if posterior dislocation is not relocated?

Refer to the emergency department for relocation Signup and view all the answers

Which muscles should often be focused on in cases of ongoing posterior instability signs and symptoms?

Posterior rotator cuff muscles and posterior deltoid Signup and view all the answers

What type of test can be used to assess posterior subluxation/instability?

Wall push-up test Signup and view all the answers

Which imaging modality is the preferred choice for investigating associated pathology in a patient with traumatic anterior glenohumeral dislocation?

Magnetic resonance imaging (MRI) Signup and view all the answers

What is the recommended approach for managing many dislocations successfully?

Rehabilitation and exercise Signup and view all the answers

In which age group should a clinician assume a rotator cuff tear until cleared in a patient with traumatic anterior glenohumeral dislocation?

Over 50 years old Signup and view all the answers

Which scenario is most likely to result in anterior shoulder instability?

Tackling an opponent with the arm straight and extended Signup and view all the answers

What is the primary cause of posterior shoulder dislocation according to the text?

Force to the back of the shoulder Signup and view all the answers

What distinguishes subluxation from glenohumeral joint dislocation?

Humeral head moves partly on the glenoid but is not locked out Signup and view all the answers

Which factor should be considered alongside pathology associated with recurrence risk in patients with traumatic anterior glenohumeral dislocation?

Kinesiophobia Signup and view all the answers

What percentage of traumatic shoulder dislocations are classified as posterior dislocations?

2-4% Signup and view all the answers

Hill Sachs lesions are typically associated with which type of shoulder injury?

Glenohumeral joint dislocation Signup and view all the answers