Deadlock

I. Overview: It is osteoarthritis of the first metatarsophalangeal joint. Very common, often caused by variation in the position of the first metatarsal bone, due to excessive inversion of the ankle (pronation), outward toe (condylar valgus), dorsiflexion of the first metatarsal bone (high metatarsal bone), or an increase in the length of the Caused by internal bias, and occasional trauma is also a cause.