Apofix椎板钩在寰枢椎不稳及脱位固定中的应用问题

目的:探讨Apofix椎板钩在寰枢椎不稳及脱位固定中的疗效及其并发症,分析并发症的产生原因并提出预防及治疗措施.方法:对17例寰枢椎不稳及脱位患者行寰枢椎后路融合,并采用Apofix椎板钩内固定.结果:本组1例寰枢椎脱位病例死亡;另1例寰枢椎脱位病例术后l周寰椎再次脱位,其余15例随访3～24个月均获得骨性愈合.结论:Apofix椎板钩操作简单,固定牢固,可提供有效的寰枢椎节段稳定,有利于寰枢椎植骨块的融合,正确选择Apofix椎板钩的固定指征是预防其并发症发生的关键.

Application of Apofix interlaminar clamp to atlantoaxial instability and dislocation

Objective:To observe the efficacy and the complications of Apofix interlaminar clamp in the treatment of atlantoaxial instability and dislocation,and to study the causes of these complications and the preventive measures against them. Methods:17 patients with atlantoaxial instability or dislocation were treated with posterior atlantoaxial fusion and Apofix interlaminar clamp fixation.Results:One case of atlantoaxial dislocation was dead and another dislocation case was redislocated one week after the operation,while the others were followed up for 3 to 24 months and all recovered well.Conclusion:It is simple to apply Apofix interlaminar clamp.The clamp can provide reliable stability for the atlantoaxial segment,and is useful for the fusion of the bone implant.Correct indications are playing an important role in avoiding the complications.