Mobility ankle replacement-guide wire now located
The guide wire (2) now located in the talus to limit posterior movement of the next jig and as a result centralise the next jigs correctly beneath the Tibial componant.Medio-laterally it should also sit in the middle of the tibial window. Unfortunately this wire is not always left positioned correctly by the jig. This stage is also affected by the position of the foot . For example if the foot is
anteriorly translated when the talar and tibial jigs are assembled (due to the heel being pushed forward by the table) the pin will lie too far posterior.
Pin position should be checked visually and on occasion moved anteriorly.This should be done using the slotted jig, so that the correct medio-lateral alignment is maintained.