Figure 5

SPECT/CT images and 3D reconstructions before and after OWHTO. Left: SPECT/CT images (1, 2) and 3D radiolucent reconstructions (3, 4) of a 55-year-old patient before OWHTO showing medial compartment overloading. Right: 1-year postoperative SPECT/CT images (5, 6) and 3D reconstructions (7, 8) reveal an unloading effect of the surgically achieved correction and an advancing consolidation of the osteotomy gap with physiological increased osseous metabolism.