[Grice's method of subtalar arthrodesis--long term results of 63 operations].

Deformities of the back foot should be operated after failed conservative treatment. In this article long time results of 36 patients are demonstrated, which are operated on with extraarticular blocking (Grice-OP) of the lower ankle. Most patients are suffering of cerebral palsy. Walking could be improved after surgery but we could not reduce orthopaedic devices. In relation to Spina bifida patients CP-patients showed worse correlation of the back foot valgus. We got better results using k-wires for stabilisation of the back foot. Grice-OP is able to prevent severe deformities but it is often followed by a subtalar arthrodesis after growth arrest.