A one-stage operation for severe post-poliomyelitic calcaneus deformity
was done in seventy-seven feet of seventy-seven patients. The operation
consisted of osteotomizing the calcaneus to increase the lever arm and to
reshape the hind part of the foot and using a posterior sling formed from
the peroneus brevis and tibialis posterior to provide plantar-flexion
power. We were able to evaluate sixty-six patients more than three years
after the operation. Most of the patients had improvement in the appearance
and function of the foot as a result of the operation.