Objective To compare the effects of percutaneous vertebroplasty ( PVP) or percutaneous kyphoplasty ( PKP) to treat osteoporotic vertebral compression fractures ( OVCFs) with intravertebral cleft ( IVC) .Methods OVCFs with IVC patients were divided into group A (PVP procedure, n=151) and group B (PKP operation, n=113).The ce-ment volume , leakage incidence , pain-improvement rate between the two groups were compared .Results The cement vol-ume in group A and B were (5.50 ±0.04) mL and (5.80 ±0.06) mL, P>0.05).The leakage incidence in group A and B were 5.3%(8/151)and 4.4%(5/113), P>0.05.The average pain improvement rate on discharge in group A and B were 86.50% ±0.07% and 88.20% ±0.04%, P >0.05; while on the one year postoperatively , the results were 84.70%±0.03%and 86.80%±0.06%, P>0.05.Conclusion IVC can benefit the cement insertion and decrease the risk of leakage , which make the treatment effect between PVP and PKP similar .%目的：对比经皮椎体成形术（ PVP）和经皮后凸成形术（ PKP）治疗伴有裂隙样变的骨质疏松性椎体压缩骨折（ OVCFs）的疗效。方法选取2011年1月～2012年12月在北京积水潭医院经影像学证实存在椎体内裂隙样变的OVCFs患者，将接受PVP手术的患者归入A组（n＝151），PKP手术的患者归入B组（n＝113），比较两组骨水泥注入量、骨水泥渗漏发生率以及疼痛改善率。结果 A、B组骨水泥注入量分别为（5．50±0．04）mL和（5．80±0．06）mL，P＞0．05。 A、B组骨水泥渗漏发生率分别为5．3％和4．4％，P＞0．05。 A、B两组疼痛改善率在离院时分别为86．50％±0．07％和88．20％±0．04％，P＞0．05；术后1 a时，A、B组疼痛改善率分别为84．70％±0．03％和86．80％±0．06％，P＞0．05。结论椎体内裂隙有利于骨水泥安全注入，并降低其渗漏的风险，从而使PVP和PKP的疗效相当。
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