Efficacy Comparison between Different Approaches of Percutaneous Kyphoplasty in Treatment of 63 Patients with Osteoporotic Vertebral Compression Fractures

Objective To observe the clinical efficacy of the unilateral versus bilateral percutaneous kyphoplasty( PKP) through pedicle of vertebral arch in treatment of osteoporotic vertebral compression fractures( OVCFs). Methods A total of 63 patients( 78 vertebrae) with OVCFs during January 2010 and January 2012 were randomly divided into group A( n = 37) and group B( n = 26). Group A was treated with unilateral approach through pedicle of vertebral arch,and group B was treated with bilateral approaches through pedicle of vertebral arch. The operation time,intraoperative bleeding volume,X-ray exposure frequency,the priming volume of bone cement,visual analogue scale,reformative oswsetry disability indexes( ODI),recoveries of the local kyphotic angle and vertebrae relative height were observed. Results The operation time,intraoperative bleeding volume,X-ray exposure frequency and the priming volume of bone cement in group A were much less than those of group B( P 0. 01). The VAS,ODI,the local kyphotic angle and fracture vertebrae height after operation in the two groups were significantly improved compared with those before operation( P 0. 01). There were no significant differences in incidence rates of adjacent fracture of vertebra body and bone cement leakage in the two groups( P 0. 05). Conclusion Both unilateral and bilateral PKP through pedicle of vertebral arch in treatment of OVCFs can achieve effective outcomes,but the unilateral PKP through pedicle of vertebral arch can shorten the operation time,reduce intraoperative bleeding volume and X-ray exposure time and decrease the priming volume of bone cement.