<prompt> MC comp. of talus is -Avascular necrosisNonunionOsteoarthritis of ankle jointOsteoarthritis of subtalar joint  <response>: Most of the guides have given AVN as the most common complications of talus fracture. They are wrong.A most common complication of talus fracture is subtalar joint arthritis. Read following statements : -Subtalar and ankle arthritis is a common complication of talar neck fractures, with an incidence ranging from 47 to 97. Subtalar arthritis has been reported in up to 50 of cases and ankle arthritis in 33 of cases.The overall incidence of AVN ranges between 19 and 69.Delayed union, nonunion and malunion of the talus are relatively rare. Delayed union is reported in 13 and non-union is noted in 4. 