Hip dislocation: evaluation and management.

Area of Science:

• Orthopedic Surgery
• Trauma Care
• Radiology

Background:

• Hip dislocations are classified as simple (without fracture) or complex (with fracture-dislocation).
• High-energy trauma, typically motor vehicle accidents, is the most common cause, often involving associated injuries.
• Posttraumatic arthritis incidence is significantly lower in simple hip dislocations compared to fracture-dislocations.

Purpose of the Study:

• To differentiate between simple hip dislocations and complex fracture-dislocations.
• To outline emergent management strategies for hip dislocations.
• To discuss indications for surgical intervention and potential long-term complications.

Main Methods:

• Review of hip dislocation classification and injury mechanisms.
• Emphasis on emergent, atraumatic hip reduction techniques.
• Discussion of diagnostic imaging (radiographs, CT) and intraoperative assessment for acetabular fractures.
• Overview of surgical management options, including arthrotomy and arthroscopy.

Main Results:

• Simple hip dislocations have a lower incidence of posttraumatic arthritis than fracture-dislocations.
• Emergent reduction is critical; imaging may not reveal all intra-articular pathology.
• Complications include osteoarthritis, osteonecrosis, and sciatic nerve injury.
• Surgical indications include nonconcentric reduction, proximal femur fractures, and unstable acetabular fractures.

Conclusions:

• Prompt reduction of hip dislocations is essential for optimal outcomes.
• Complex fracture-dislocations carry a higher risk of long-term degenerative changes.
• Hip arthroscopy is increasingly utilized for associated intra-articular pathologies.