Irreducible traumatic posterior hip dislocation with entrapment and a buttonhole effect

Area of Science:

• Orthopedic Surgery
• Traumatology
• Sports Medicine

Background:

• Irreducible traumatic hip dislocations are uncommon injuries.
• Posterolateral dislocations with capsular and labral entrapment present unique challenges for reduction.
• Prompt diagnosis and appropriate management are crucial to prevent long-term sequelae.

Purpose of the Study:

• To report a case of irreducible posterolateral traumatic hip dislocation with capsular and labral entrapment.
• To describe the surgical management and long-term outcomes of this rare injury.
• To review the literature on similar cases.

Main Methods:

• A 27-year-old male patient with irreducible posterolateral hip dislocation underwent open reduction via a posterolateral approach.
• Surgical findings included an osteochondral fragment with attached labrum and capsule obstructing the acetabulum.
• The hip was reduced, the fragment fixed with a screw, and the capsule repaired.

Main Results:

• The open reduction successfully addressed the entrapment and stabilized the hip.
• At 10-year follow-up, the patient exhibited excellent function with a Harris score of 100.
• No signs of avascular necrosis or osteoarthritis were observed.

Conclusions:

• Open reduction is an effective treatment for irreducible traumatic hip dislocations with capsular and labral entrapment.
• This approach can lead to excellent long-term functional outcomes and prevent joint degeneration.
• Further literature review is warranted to better understand this uncommon injury pattern.