This issue of Foot and Ankle Clinics, guest edited by Dr. Kenneth Hunt, will cover concepts surrounding Avascular Necrosis of the Foot and Ankle. Under the guidance of long-time series Consulting Editor Dr. Mark Myerson, Dr. Hunt and his contributing authors will explore topics of interest for practitioners in the field. Articles include, but are not limited to: Diagnostic Imaging for Avascular Necrosis of the Foot and Ankle; Natural History of AVN in the talus; Prevention of AVN in the talus; Avascular Necrosis of the Sesamoids; Kohlers disease and Avascular Necrosis of the Tarsal Navicular in the child; Management of Muller Weiss disease; Bone Grafting and Core Decompression for AVN of the Talus; AVN of the tibial plafond following rotational ankle fracture; Vascularized pedicle graft for talar AVN; Ankle arthrodesis for Talar AVN and arthrodesis non-union; Tibiotalar-Calcaneal Arthrodesis for Severe Talar AVN; and Total Talar Replacement Prosthesis.