Fig. 1

The clinical data of a 72-year-old female OVCF patient with UTTP PKP surgery. The fresh fracture was located at T12 by X-Ray (a, b), CT scan (c, d) and MRI (e–g). And it could be also observed from CT scan that the anterior wall was broken in this vertebra. Forty-degree extraversion angle was used (h) and the tip of trocar reached the midline area (i, j). T12 vertebra was almost filled up with cement on the fluoroscopy and a little cement leaked from the anterior wall of vertebral body (k, l). Symptom relief and correction of spinal deformity were taken effect immediately after surgery. At the follow-up one month later, symptom was further relieve and no re-collapse was observed (m–o)