Total contact casting is an effective and ambulatory therapy for healing diabetic neuropathic plantar ulcers. It offloads pressure and shortens healing time to 36-43 days by immobilizing the foot and redistributing pressure. Total contact casting is indicated for grade 1 and 2 plantar ulcers with insensitivity and contraindicated for active infection, ulcers deeper than wide, or excessive swelling. It maintains ambulation while reducing pressure and protecting the foot during healing.