寰枢椎后路经关节改良螺钉内固定治疗寰枢椎不稳定

Modified posterior atlantoaxial transarticular screw fixation for atlantoaxial instability

目的探讨寰枢椎不稳定患者行寰枢椎后路经关节改良螺钉内固定手术方法与疗效。方法对16例寰枢椎不稳定患者,采用枢椎下关节突下缘中点为进钉点的经关节螺钉内固定及自体颗粒样松质骨植骨治疗。结果随访5～48个月,16例患者寰枢椎稳定性均获得恢复与骨融合,无并发症。结论寰枢椎后方经关节螺钉内固定,可提供牢固的固定,恢复寰枢椎稳定,并发症发生率低。

Objective To study the operative method and effect of posterior atlantoaxial facet screw fixation for atlantoaxial instability. Methods Sixteen patients with atlantoaxial instability were treated with posterior transarticular screw fixation drilling from the midpoint in the lower facet tim of the axial with autologous cancellous bone particles graft. Results During a follow - up of 5 ～ 48 months, atlantoaxial stability was restored satisfactorily in 16 patients with no complication, and bone fu sion was obtained. Conchlsion Posterior facet screw fixation with low complication rate can provide rigid fixation and stability for the patients with atlantoaxial instability.