摘要
[目的]回顾分析青壮年胸腰段爆裂骨折行单纯后路短节段椎弓根螺钉固定治疗的临床及影像学特点,探讨其临床疗效。[方法]2002年6月～2006年4月,对54例青壮年胸腰段爆裂骨折采用后路短节段椎弓根螺钉固定治疗,不行后路植骨,并于术后12～20个月行内固定装置取出。资料完整、得到随访的32例。通过X线片,测量包括Cobb′s角,伤椎上下终板成角及伤椎椎体前缘高度比参数,分析手术前后不同时间的伤椎局部变化情况,并采用VAS(visualanalogscale,VAS)疼痛指数评价病程中腰背痛程度。[结果]术后32例获得随访,随访时间36～56个月,平均43个月。内固定术后复位满意,疼痛缓解明显,椎弓根螺钉断裂4例。随访期间,伤椎椎体高度和伤椎上下终板成角丢失不明显(P>0.05),Cobb′s角有一定丢失(P<0.05),疼痛程度无明显变化。[结论]对于青壮年,单纯后路短节段椎弓根螺钉固定能提供良好复位和高度维持,术后取出内固定装置,可恢复局部运动功能。
[Objective]To evaluate the outcomes of treating thoracolumbar burst fractures in young adults with posterior short-segment pedicle screw fixation without fusion by analyzing the clinical and radiographic parameters.[Method]Fifty-four patients with thoracolumbar burst fractures from June 2002 to April 2006 were investigated retrospectively.Thirty-one patients were male and 23 were female.The mean age was 31 years.All patients underwent open reduction and posterior short-segment pedicle screw fixation without bone graft fusion,and had their implants removed at 12 to 20 months post-operatively.Pain status was evaluated using the visual analog scale（VAS）.Changes in the anterior vertebral height ratio,Cobb′s angle,and vertebral wedge angle were measured preoperatively,postoperatively,before implant removal,and at 2 years after implant removal.[Result]Thirty-two patients were available to follow-up,with an average period of 43 months（range,36-56 months）.A good correction was gained and pain was released significantly after surgery.The loss of correction was statistically significant and there were 4 patients suffering from screw broken before the instrumentation removal,however.A progressive kyphotic deformity （Cobb′s angle increased while vertebral wedge angle unchanged） was caused by the collapse of the intervertebral disc space while the reduced vertebral height was stable after the implant removal.No significant correlation was found between the final kyphosis and pain scale.[Conclusion]Short-segment pedicle screw fixation without fusion can provide good reduction and sustained corrective height if adequat indication of thoracolumbar burst fractures has been choosen.Earlier implant removal can regain local segmental motion.
出处
《中国矫形外科杂志》
CAS
CSCD
北大核心
2010年第12期979-981,共3页
Orthopedic Journal of China
关键词
爆裂骨折
椎弓根螺钉
非融合
胸腰椎
burst fracture
pedicle screw
nonfusion
thoracolumbar spine
