Hip Dislocation

Question 1

What is the primary cause of hip dislocation?

Answer 1

Direct trauma, particularly road traffic accidents and significant falls from height

Other causes may include sports injuries or falls in the elderly.

Question 2

What percentage of hip dislocations are posterior dislocations?

Answer 2

90%

Posterior dislocations are the most common type.

Question 3

Describe the position of the affected leg in a posterior hip dislocation.

Answer 3

Shortened, adducted, and internally rotated

This positioning is characteristic of posterior dislocations.

Question 4

In an anterior hip dislocation, how is the affected leg positioned?

Answer 4

Abducted and externally rotated

Unlike posterior dislocations, there is no leg shortening.

Question 5

What is the ABCDE approach in the management of hip dislocation?

Answer 5

Analgesia, reduction under general anaesthetic, and physiotherapy

The ABCDE approach is a systematic method for assessing and managing trauma.

Question 6

What is the recommended time frame for reducing a hip dislocation to minimize the risk of avascular necrosis?

Answer 6

Within 4 hours

Early reduction is crucial for better outcomes.

Question 7

List three complications associated with hip dislocation.

Answer 7

• Sciatic or femoral nerve injury
• Avascular necrosis
• Osteoarthritis

Recurrent dislocation is also a notable complication.

Question 8

Which complication of hip dislocation is more common in older patients?

Answer 8

Osteoarthritis

This may result from chronic changes in joint stability and health.

Question 9

How long does it typically take for the hip to heal after a traumatic dislocation?

Answer 9

2 to 3 months

Healing duration may vary based on individual circumstances.

Question 10

What factors contribute to the best prognosis after a hip dislocation?

Answer 10

• Reduction within 12 hours post-injury
• Less damage to the joint

Timely intervention is critical for recovery.