Preliminary clinical research of vertebral body stenting combined with absorbable bone cements for osteoporotic vertebral compression fractures

Abstract

Objective To observe the clinical effect and safety of using vertebral body stenting combined with absorbable bone cements during percutaneous kyphoplasty (PKP) for osteoporotic vertebral compression fractures (OVCF). Methods A prospective study was made on the patients managed with vertebral body stenting combined with absorbable bone cements for OVCF between January 2014 and January 2016. Visual analogue scale (VAS), Oswestry disability index (ODI), vertebral body height recovery, kyphotic cobb angle and surgical complications were measured before and after operation. Results A total of 15 patients (8 males and 7 females; aged 51-83 years, mean 68.6 years) were included. Mean period of follow-up was 6 months. All patients were operated successfully without intraoperative and postoperative complications. VAS was improved from preoperative (7.67±0.62)points to (2.60±0.63)points at 3 d, (2.00±0.65)points at 3 months and (1.26±0.80)points at 6 months (P 0.05). Cobb angle was improved from preoperative (8.93±6.58)° to (8.03±6.02)° at 3 d and (7.93±6.09)° at 6 months(P 0.05). Conclusion Vertebral body stenting combined with absorbable bone cements used in PKP in the treatment of OVCF can improve and maintain the front edge as well as middle height of the vertebral body and cobb angle, and the early follow-up results are satisfactory. Key words: Osteoporotic fractures; Vertebroplasty; Vertebral body stent