Hallux valgus, basal osteotomy-initial steps
Initial steps are as for a scarf osteotomy, with lateral release, medial approach and removal of exostosis (1).
The exposure needs to be just a little more proximal, revealing the full extent of the metatarsal flare (3). The chosen implant (a minimum of 5mm plate for larger angles) is offered against the bone to plan position for the osteotomy (2).