Grice's operation for spastic flat foot.

The authors report 24 cases of severe spastic pes valgus in children affected by cerebral palsy, treated surgically by a technique derived from that of Grice - taking the transplant from the calcaneus itself instead of from the usual sites. They discuss the parameters usually considered in assessing the results and describe their own method of interpreting the measurements derived from the angles usually employed in the evaluation of pes valgus.