Figure 14.
These bone models demonstrate performance of the Cotton medial cuneiform osteotomy. First a sagittal saw or osteotome is used to cut the dorsal aspect of the medial cuneiform from dorsal to plantar in line with the first metatarsal-medial cuneiform articulation (Figure 14A). Then a wedge of bone graft is inserted into the osteotomy effectively plantarflexing the first metatarsal (Figure 14B).