前路单枚螺钉治疗老年齿状突Anderson Ⅱ型骨折的疗效观察

Clinical Observation of Anterior Single Screw on the Treatment of Old Odontoid Fractures of Anderson Type

目的：探讨颈前路单枚中空螺钉内固定技术治疗老年齿状突AndersonⅡ型骨折临床疗效。方法：对23例齿状突AndersonⅡ型骨折老年患者在透视下行颈前路单枚螺钉内固定术,所有患者术前行颅骨牵引复位,术中植入单枚螺钉,术后颈托外固定。结果：术后随访6～23个月,2例于最后随访仍未达到骨性愈合,5例于术后3个月复查骨折已达骨性愈合,10例于术后5个月复查时显示骨性愈合,6例于术后1 a复查骨性愈合。结论：前路单枚螺钉内固定治疗老年AndersonⅡ型齿状突骨折具有良好的稳定性,保留了寰枢关节运动功能,骨折愈合率较高,并发症低。

Objective： To investigate effect of the anterior single hollow screw internal fixation technique for the treatment of old odontoid fractures of Anderson type. Methods： Elderly patients with fixation in the perspective of descending anterior single screw in 23 cases of odontoid Anderson Ⅱ fracture,all the patients underwent skull traction reduction,the implantation in single screw,postoperative cervical immobilization. Results： Patients were followed up for 6- 23 months,2 cases in the last follow-up has not yet reached bone union,5 cases in 3 months after the treatment,the fracture has healed,10 cases in 5 months after the treatment showed bone union,6 cases after 1years follow-up bone healing. Conclusion： Good stability of fixation in the treatment of elderly patients with Anderson type Ⅱ odontoid fracture of anterior single screw,atlantoaxial joint motion function was reserved,high rate of fracture healing,less complications.