Patient-Specific Three-Dimensional Model for a Safe Surgical Pathway in Sacral Chondrosarcoma

Area of Science:

• Neurosurgery
• Orthopedic Surgery
• Surgical Oncology

Background:

• Sacral tumors present significant surgical challenges due to complex anatomy.
• En bloc resection is often required for complex sacral masses.
• Risks include nerve damage, instability, and incomplete tumor removal.

Purpose of the Study:

• To determine if patient-specific models alter preoperative planning for sacral tumor resection.
• To evaluate the impact of 3D modeling on surgical decision-making and anatomical comprehension.

Main Methods:

• Acquisition of high-resolution images to create patient-specific 3D sacral tumor models.
• Visual and tactile inspection of 3D models for anatomical assessment.
• Analysis of the models for surgical planning, osteotomy guidance, and stability assessment.

Main Results:

• 3D models provided superior anatomical understanding and faster comprehension.
• Identified previously unapparent anatomical details and tumor extension.
• Enabled precise osteotomy planning, preserving S1 and S2 nerve roots and ensuring spinopelvic stability.

Conclusions:

• Patient-specific 3D models significantly improve preoperative planning for sacral tumor surgery.
• These models enhance surgical decision-making, leading to safer procedures and better outcomes.
• 3D modeling aids in navigating complex anatomy, preserving neural structures, and assessing stability.