An Exceptionally Uncommon Hip Injury: Femoral Neck Fracture Dislocation with Abductor Avulsion: A Case Report

Area of Science:

• Orthopedic Surgery
• Trauma Management
• Hip Biomechanics

Background:

• Femoral neck fracture dislocations are exceptionally rare injuries.
• Associated hip abductor avulsion presents unique surgical challenges.
• Avascular necrosis (AVN) is a significant long-term complication.

Purpose of the Study:

• To report an extremely rare case of femoral neck fracture dislocation with complete hip abductor avulsion.
• To describe the surgical management and long-term outcomes of such a complex injury.
• To highlight the importance of prompt intervention and follow-up.

Main Methods:

• Surgical management involved open reduction of the dislocation.
• Open reduction internal fixation (ORIF) was performed for the femoral neck fracture.
• Direct repair of the hip abductor complex was undertaken.

Main Results:

• The patient initially healed but later developed avascular necrosis (AVN).
• Conversion to total hip arthroplasty was necessary at 3 years post-injury.
• A Harris Hip Score of 92 was achieved 11 years after the initial injury.

Conclusions:

• Prompt, anatomic ORIF of femoral neck fracture dislocation is recommended.
• Direct repair of the hip abductor complex is essential.
• Long-term follow-up is crucial due to the high risk of AVN.