Lateral Talar Sidewall Avalanche, A Rare Inverted Osteochondral Fracture: A Case Report

Area of Science:

• Orthopedic Surgery
• Trauma Surgery
• Radiology

Background:

• Complex ankle fractures are often challenging to diagnose and manage.
• Osteochondral fragments can lead to significant joint instability and long-term morbidity.
• High-energy mechanisms frequently cause severe intra-articular injuries.

Purpose of the Study:

• To report a rare case of complex ankle fracture with an inverted osteochondral fragment.
• To highlight the diagnostic importance of advanced imaging in such cases.
• To discuss the surgical management and outcome of this specific injury pattern.

Main Methods:

• A 50-year-old male patient with a right ankle injury following a significant fall.
• Radiographic and advanced imaging (CT/MRI implied) to identify fracture components.
• Surgical fixation of the identified fractures, including the osteochondral fragment.

Main Results:

• Diagnosis of a complex ankle fracture pattern including an inverted osteochondral fragment from the lateral talar sidewall, lateral talar process fracture, and medial malleolus fracture.
• Successful surgical fixation of the fragment and associated fractures.
• Achieved fracture union and a favorable patient recovery.

Conclusions:

• This case illustrates a rare complex ankle fracture with an inverted osteochondral fragment, likely caused by high-energy trauma.
• Computed Tomography (CT) or Magnetic Resonance Imaging (MRI) is essential for detecting subtle intra-articular pathologies.
• Appropriate surgical planning based on accurate imaging is crucial for successful treatment and patient outcomes.