A femoral osteotomy is a surgical procedure to cut the femur bone and realign it in an attempt to improve limb mechanics.
Post op distal femoral osteotomy. This was actually a double osteotomy as the alignment of the tibia was also changed, and you get a glimpse of this at the bottom of the image.
Proximal or distal femoral osteotomy
The common osteotomy is the distal femoral osteotomy, in the femur bone just above the knee. The other kind of osteotomies may be that of the neck of the femur for torsional deformity or of the shaft for badly-healed fractures that need de-rotation or re-alignment.
Synonyms:
DFO
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CLINICAL PUBLICATIONS
Femoral Derotation Osteotomy in Adults for Version Abnormalities. Buly RL, Sosa BR, Poultsides LA, Caldwell E and Rozbruch SR. J Am Acad Orthop Surg. 2018 Oct 1; 26(19): e416–e425.