A 78-year-old man underwent PV for T12 osteoporotic VCF. The patient experienced intractable back pain and bilateral lower limb weakness after falling down and injuring himself. Anteroposterior radiograph (A) revealed a radiolucent line surrounding the bone cement. Lateral radiograph (B) revealed T12 bone cement anterior dislodgement. After 2 months of conservative treatment, the symptoms of back pain and leg weakness had worsened. The follow-up lateral radiograph (C) showed further cement dislodgement and T11 adjacent fracture with kyphotic deformity.