The results of tenodesis of the tendo achillis to the fibula for paralytic pes calcaneus.

Sixty-six consecutive tenodeses of the tendo achillis to the fibula were done in sixty patients who had paralytic pes calcaneus. The patients were followed for an average of 5.7 years (range, two to 10.8 years). The preoperative disturbance of gait was eliminated in all of the patients, and radiographic improvement was noted in the feet that had been operated on. Sixteen feet (23 per cent) required revision of the tenodesis because equinus deformity had developed. The development of equinus deformity was found to occur more often in patients who had the procedure at a younger age and in patients in whom the calcaneotibial angle measured more than 70 degrees at the time of the tenodesis. Residual cavovarus deformity was successfully treated by a plantar release.