- Causes : Ligamentous insufficiency, Trauma, Neuropathic arthropathy
- Treat non operatively with full leg rigid inserts for patients without deformity
- Midtarsal Arthrodesis: Reliable stable construct to achieve and maintain correction of the deformity
- External fixation was 8 times more likely to develop radiographic nonunion
- Results of surgery are good in non neuropathic
- High complications in neuropathic conditions
