抗旋转复位内固定器在新鲜胸腰段脊柱骨折的应用

目的　应用自行设计的抗旋转复位内固定器 (anti- rotation reduction internal fixators,ARRIF)对 76例不同节段的胸腰段脊柱骨折进行切开复位内固定 ,观察复位固定效果及并发症等。　方法　 1999年 8月～ 2 0 0 3年3月应用抗旋转复位内固定器共治疗胸腰椎骨折 76例 ,男 4 8例 ,女 2 8例。年龄 2 2～ 5 9岁 ,平均 34.1岁。按骨折部位分类 :T1 1 8例 ,T1 2 2 9例 ,L1 31例 ,L2 8例。按骨折类型分类 :屈曲压缩骨折 2 7例 ,爆裂型骨折 4 2例 ,屈曲牵张型损伤 3例 ,屈曲旋转型骨折脱位 2例 ,剪力型脱位 2例。按 Frankel神经功能分类 :A级 16例 ,B级 15例 ,C级 2 7例 ,D级 10例 ,E级 8例。从手术时间、术中出血量、复位结果及并发症的发生等方面对 ARRIF的临床效果进行观察。　结果　平均手术时间 1.2 h,术中出血量 2 0 0 ml。术后 76例获 6～ 2 1个月随访 ,平均 15个月。术后神经功能按 Frankel分级 ,有 1级以上改善者如下 :A级 8例 (5 0 % ) ,B级 11例 (73.3% ) ,C级 2 0例 (74 .1% ) ,D级 3例 (30 % ) ;E级 2例神经功能无明显变化。全组术后均无神经功能障碍加重 ,未出现断钉、断杆等并发症。Cobb角术后较术前平均矫正 2 2°,脱位的椎体在矢状面水平位移平均矫正 2 8% ,差异有统计学意义 (P<0 .0 1)。　

THE CLINICAL EFFECT OF ANTI-ROTATION REDUCTION INTERAL FIXATOR ON THE TREATMENT OF FRESH THORACOLUMBAR SPINE FRACTURE

OBJECTIVE: To evaluate the effect of self-designed anti-rotation reduction internal fixator (ARRIF) on treating different spine segment fracture. METHODS: From August 1999 to March 2003, 76 patients(48 males and 28 females, aged from 22 to 59 with an average of 34.1) with thoracolumbar fracture were operatively treated by ARRIF. The follow-up period ranged from 6 to 21 months (15 months in average). Classification according to injury segment: flexion compression fracture 27 cases, burst fracture 42 cases, flexion distraction injury 3 cases, flexion revolving type fracture dislocation 2 cases, shear force type dislocation 2 cases. Classification according Frankel's grade: A grade 16 cases, B grade 15 cases, C grade 27 cases, D grade 10 cases, E grade 8 cases. Operation duration, volume of bleeding, incidence post-operation complication and effect of reduction-fixation were observed. RESULTS: The operation duration of ARRIF was 1.2 h in average, and there was about 200 ml volume of bleeding during operation. The nerve function showed one Frankel's grade improvement after operation were as follows: A grade 8 cases (50%), B grade 11 cases (73.3%), C grade 20 cases (74.1%), D grade 3 cases (30%); 2 Frankel's E cases have no nerve function changes. The nerve function damage have no aggravation in all the patients, the postoperation Cobb's angle was averagely corrected 22 degrees. The horizontal displacement of dislocation vertebrae was averagely corrected 28% in sagittal plane, the statistical analysis had significant variance (P < 0.01). ARRIF had no complications of the breakage of screws and rods. CONCLUSION: ARRIF proves to be a valid internal fixator in reducing and fixing different thoracic lumbar segment spine fracture.