Case Summary:
Tibial Osteosarcoma Resection & Allograft Surgical Cutting Guides
Tibial Osteosarcoma Resection & Allograft Surgical Cutting Guides
Patient Diagnosis:
The patient was diagnosed with a low grade osteosarcoma of the right proximal tibia.
Planned Procedure/Approach:
A resection of the tumor and follow-up allograft reconstruction was planned.
The osteotomy planes were positioned to accurately resect the tumour whilst leaving the articular surface undistrubed. The patient-matched allograft than allowed for a stable reconstruction.
What Insight Surgery provided:
- Patient-specific 3D printed anatomical models
- Virtual Surgical Plan to ensure negative margins in resection and to allow for variable tolerances throughout the footprint to account for soft tissue in different locations
- Surgical guide for resection with support bridge to achieve the required low profile
- Allograft cutting guide designed to achieve good global fit around the tumor resection borders
Outcome/Benefits:
- Resection preserved the tibial tuberosity to maintain function of the knee extensor mechanism.
- The surgeon particularly appreciated the angled cut running underneath the tibial plateau. If attempted freehand it likely would have ran horizontally (experience of this in a previous case resulted in the structure collapsing post-op).
- The cut provided by this guide allowed the tibial platform more structural integrity and strength, reducing the risk of collapse and further surgery for the patient