Radiographic evaluation of bone grafts

Area of Science:

• Orthopedic Surgery
• Radiology
• Biomaterials Science

Background:

• Autogenous and allogenic bone grafts are common in foot and ankle surgery for nonunions, fractures, fusions, and osteotomies.
• Effective patient management necessitates understanding post-operative radiographic changes.
• Radiographic assessment is key for evaluating graft incorporation and healing.

Purpose of the Study:

• To describe the normal and abnormal radiographic findings following bone graft procedures in the foot and ankle.
• To provide a guide for interpreting imaging at both graft recipient and donor sites.
• To enhance perioperative management through improved radiographic interpretation.

Main Methods:

• Review of radiographic presentations after autogenous and allogenic bone grafting.
• Description of typical imaging features at recipient sites (e.g., ankle, foot bones).
• Description of typical imaging features at donor sites (e.g., iliac crest, fibula).

Main Results:

• Normal radiographic progression of bone graft incorporation, including early consolidation and remodeling.
• Identification of common abnormal findings such as graft resorption, nonunion, infection, or hardware complications.
• Distinctive radiographic appearances at various donor sites.

Conclusions:

• Familiarity with expected radiographic changes is essential for accurate diagnosis and treatment planning.
• Radiography plays a vital role in monitoring the success of bone grafting in foot and ankle surgery.
• Differentiating normal healing from complications aids in timely clinical intervention.