Lachman JR, et al. - Given unique treatment difficulties are faced in cases with avascular necrosis of large portions of the talus, researchers here focus on total talus replacement as a treatment option for these patients. This procedure was first described in Southeast Asia and represents an attempt to replicate a patient’s anatomy while preserving motion and eliminating pain with the use of traditional manufacturing techniques. So that native anatomy of the patient can be identically recreated and tibiotalar, subtalar and talonavicular joint motion could be preserved, the contemporary techniques include 3D printing technology. According to the findings, this surgery is relatively simple technically, reliable, and affords another option for treatment of this very difficult problem.