Unexpected bony regrowth following partial hallux amputation in a diabetic neuropathic foot: A case report

Abstract

Bony regrowth following digital amputation in adult diabetic patients is rarely observed. This case report presents a 60-year-old man with diabetes and peripheral neuropathy who underwent partial distal phalanx amputation of the hallux due to osteomyelitis. Radiographic imaging 15 months later revealed unexpected regeneration of approximately 1 cm of bone at the amputation site. We hypothesize that preserved periosteal structures and the patient’s physically active lifestyle contributed to osteogenesis. This case highlights the potential for spontaneous bone regeneration in adults under specific biomechanical and surgical conditions.