Here is another use of allografts. 🧩
This reconstruction was used to bridge the defect of an opening osteotomy on a distal radius to treat Madelung disease. The parallelepiped bone graft was optimally matching the opening which is of utmost importance to obtain the exact planned angle.
Therefore, two guides and an aligner were planned: a first cutting guide to make the opening in the patient's radius level, a second cutting guide to shape the allograft and an aligner to bring the distal bone fragment to its the planned position.
It was then possible to simply slide the graft on the patient to obtain the planned correction.
Finally the last step was to adapt the last side of the graft using the provided bone model.
With this easy technique the graft perfectly matches the gap : keep it simple