Joint-preserving surgery for idiopathic bilateral osteonecrosis of the distal tibia: A case report.

Introduction: Osteonecrosis (ON) is a serious pathological condition that can affect weight-bearing areas of the lower limbs, including the distal tibia. Although trauma is a common cause of ON, the condition has multiple possible etiologies. ON has been associated with a range of factors, including trauma, medication use, alcoholism, and vascular disease.