- Dorsolateral dislocation of the talonavicular joint
- genes identified relate to homeobox transcription factors
- Suspect in infants presenting with plantar fullness in the medial midfoot and a dorsolateral crease
- D/D: Calcaneovalgus foot, Oblique talus
- Seimon first showed that minor surgery—a limited dorsolateral capsulotomy and pinning—is sufficient
- Reverse Ponseti casting with or without dorsolateral capsulotomy+pinning +/- percutaneous TA lengthening
- Talectomy-indicated in resistant case
- Triple arthrodesis-as salvage procedure
- Reconstructive options are less predictable after age 3
