Combined arthrosis or deformity of the subtalar and ankle joints presents a challenge to the foot and ankle specialist. Tibiotalocalcaneal arthrodesis is a well-described surgical technique used for resolution of deformity and end-stage arthrosis of the ankle and subtalar joints and is currently the standard of care for this condition. This article highlights the technique of insertion of the humeral locking plate for the stabilization of tibiotalocalcaneal arthrodesis. A case study is provided to serve as an example of the technique.