Sagittal biplanar ‘L’-shaped tibial osteotomy associated with osteochondral allograft for symptomatic varus knee and low patella

The biplanar "L"-shaped tibial osteotomy offers a theoretical biomechanical advantage by enabling coronal correction without altering the posterior tibial slope or patellar height in the sagittal plane. In this case, it allowed simultaneous management of the deformity and the osteochondral lesion in a single-stage procedure. However, as this is a single case, the results should be interpreted with caution and require confirmation through larger series with long-term follow-up.