Calcaneal sliding osteotomy is a frequently preferred procedure in the treatment of rigid heel varus deformity. The routine approach for calcaneal osteotomy is the lateral approach. However, wound problems, risk of iatrogenic injury to medial neurovascular structures, and difficulty in the management of the deformity are the main problems of this approach. In this article, we describe a new surgical approach, consisting of Achilles tendon lengthening in addition to calcaneal osteotomy, facilitating the intervention of other flexor tendon components and posterior structures in the correction of rigid heel varus deformity. Level of Evidence: Diagnostic Level V.