Split posterior tibial tendon transfer for spastic equinovarus foot deformity.

This paper describes a simplified technique for split posterior tibial tendon transfer in the treatment of spastic equinovarus deformity of the foot. Thirteen children with spastic equinovarus foot deformities were treated at Children's Rehabilitative Services in Phoenix, Arizona, from 1983 to 1986. The technique was modified in 10 of the 13 patients by attaching the split posterior tibial tendon more proximally to the peroneus brevis, compared to a more distal attachment as described by other authors. The mean length of followup was 21 months. Eleven patients obtained a good or excellent result. Two patients were considered to have a fair result. No poor results or complications were noted in any of the patients. It was felt that the split posterior tibial tendon transfer was an effective procedure for correction of spastic equinovarus as reported by other authors. Modification of the technique significantly simplifies the operation by requiring less dissection while still producing favorable results.