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  • Title: Kyphoplasty versus vertebroplasty in the treatment of painful osteoporotic vertebral compression fractures: two-year follow-up in a prospective controlled study.
    Author: Du J, Li X, Lin X.
    Journal: Acta Orthop Belg; 2014 Dec; 80(4):477-86. PubMed ID: 26280719.
    Abstract:
    A total of 112 patients with a single-level osteoporotic vertebral compression fracture who did not respond to conservative therapy were included and allocated to either kyphoplasty or vertebroplasty treatment. The Visual Analogue Scale (VAS) and Oswestry Disability Index (ODI) were used to assess back pain and disability. Anterior, midline, posterior vertebral body heights, and kyphotic angle at the fractured vertebra were measured for radiographic evaluation. Clinical and radiographic follow-up examinations were performed postoperatively at 3, 6, 12 and 24 months. Complications and patient satisfaction with the surgical procedure were also recorded. The follow-up rate was 73.3% in the kyphoplasty group and 80.8% in the vertebroplasty group (P = 0.737). There were no significant differences between the 2 groups with regard to improvement in VAS and ODI scores (P > 0.05) at all postoperative intervals. Both treatment groups achieved marked vertebral height restoration and kyphotic angle reduction, but the radiographic parameters were significantly better in the kyphoplasty group (P < 0.05). The incidence of asymptomatic cement leakage per treated vertebrae in the kyphoplasty group was 11.4% versus 31% in the vertebroplasty group (P < 0.001). Three adjacent level fractures in the kyphoplasty group and 2 in the vertebroplasty group occurred during 2-year follow-up, and no difference in patient satisfaction was detected between the 2 groups. Kyphoplasty and vertebroplasty achieved similar improvement of clinical outcomes and patient satisfaction at 2 years after surgery, albeit kyphoplasty had more ability to markedly reduce vertebral deformity and resulted in less cement leaks compared with vertebroplasty.
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