Based　on　the　principle　of　distraction　osteogenesis,　external　fixators　are　widely　used　in　deformity　correction　of　the　foot　and　ankle.　In　this　study,　a　novel　ankle　external　fixator　is　proposed　to　correct　complex　multiplane　deformities,　especially　for　supramalleolar　osteotomy　to　correct　distal　tibia　deformities.　The　relatively　simple　structure　and　fewer　struts　in　the　proposed　fixator　reduce　the　complexity　of　adjusting　the　external　fixator.　Based　on　two　existing　adjustment　strategies,　a　new　strategy　taking　into　account　the　orientation　and　shortest　path　of　the　ankle　joint　center　is　proposed,　which　is　named　joint　adjustment　for　equal　bone　distraction.　By　proposing　the　inverse　kinematic　solutions　of　the　novel　external　fixator,　mathematical　derivations　of　the　bone　trajectory　and　modelling　of　the　bone　shape　for　the　three　distraction　strategies　are　performed.　The　results　obtained　by　comparative　analysis　indicate　that　a　uniformly　spaced　path　of　the　ankle　joint　center　can　be　acquired,　and　a　smooth　and　uniform　correction　trajectory　of　the　distal　tibia　end　can　be　obtained　using　the　new　adjustment　strategy.　It　can　avoid　bone　end　interference　and　only　generates　a　maximum　deviation　0.66%　greater　than　the　currently　optimal　1　mm/day.　The　new　strategy　can　perform　multiplane　corrections　simultaneously,　which　shortens　the　correction　time　and　reduces　the　patient＇s　pain.