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目的 探讨采用前外侧或后外侧入路穿刺椎体成形术(PVP)治疗枢椎转移瘤的安全性和疗效.方法 对10例枢椎椎体溶骨性转移瘤的患者行PVP,男8例,女2例.9例在X线透视引导下,采用前外侧入路穿刺与注射骨水泥,1例采用CT引导后外侧入路穿刺.结果 10例患者均为单侧穿刺,并均穿刺成功.注射骨水泥量为2～4 ml.患者术后当日CT复查显示骨水泥填充病灶均在70%以上.无穿刺途径出血或骨水泥外溢引起的有临床症状的并发症.术后7 d内疼痛完全缓解(CR)7例,部分缓解(PR)3例.术后1周内均去掉头托承重,下床活动.术后随访3～24个月,4个月死亡2例、8～11个月死亡3例、13～15个月死亡4例、1例术后第24个月仍存活,术后均无局部疼痛症状加重的表现.结论 采用前外侧入路或后外侧入路行PVP治疗枢椎转移瘤安全、有效.

Objective To explore the safety and effectiveness of percutaneous vertebrophasty(PVP)in the treatment of the metastatic tumor involved axis.Methods Ten patients(8 male,2 female)with osteolytic metastases involved axis were treated with PVPs.The anterolateral approach with fluoroscopy guidance was selected in 9 cases,while the posterolateral approach with CT guidance was selected in 1 case.Results Successful unilateral-paracentesis for PVP were achieved in all patients without intervention related complications such as bleeding and symptomatic polymethylmethacrylate(PMMA)leakage.CT scan taken following PVP showed that over 70% of the osteolytic metastatic area was well filled with PMMA in all cases.Varying degrees of pain relief were observed(CR in 7 cases,PR in 3 cases)within 7 days.All patients could support their heads without brackets.During a 3 to 24 months follow up after the procedures,No aggravated pain was found in the group.Two patients died in 4 months,3 Patients died in 8 to 11 months 4 patients died in 13 to 15 months,and 1 patient still was alive after 24 months.Conclusion Anterolateral or posterolateral approach to Aixs in PVP is safe and effective in treating osteolytic metastatic tumors.