Ｇ型臂Ｘ线机在股骨颈骨折空心钉置入中的应用价值

目的:探讨G型臂X线机辅助经皮微创置钉在股骨颈骨折空心钉固定术中的应用价值。方法:回顾性收集64例采用经皮空心钉固定治疗的成人股骨颈骨折患者的资料。其中33例术中采用G型臂X线机透视下辅助置钉,为G臂组;31例术中采用C型臂X线机透视下辅助置钉,为C臂组。采用Harris评分评估髋关节功能情况,比较2组术中操作X线机次数、手术时间、术后住院时间、末次随访时疼痛视觉模拟评分及Harris评分。结果:2组手术均顺利完成,G臂组解剖复位31例,功能复位2例;C臂组解剖复位28例,功能复位3例。64例获得随访,平均随访(5.7±0.6)个月。G臂组术中操作X线机次数(t=6.287, P=0.000)、手术时间(t=6.482, P=0.000)少于C臂组(P0.05);2组术后住院时间(t=0.568,P=0.571)、末次随访时疼痛视觉模拟评分(t=0.530,P=0.597)及Harris评分(t=0.714,P=0.477)差异均无统计学意义(P0.05)。结论:股骨颈骨折空心钉固定术中采用G型臂X线机辅助置钉,具有中术操作X线机次数少、手术时间短的优点,可取得满意治疗效果。

Application Value of G-arm X-ray Machine in Placement of Cannulated Screws for Femoral Neck Fracture

Objective To investigate the value of G-arm X-ray machine assisted percutaneous minimally invasive screw fixation in cannulated screws of femoral neck fractures. Methods The adult femoral neck fractures ( 64 cases) treated with percutaneous cannulated screws were retrospectively collected. Thirty-three cases assisted by ?uoroscopy of G-arm X-ray machine in the placement of percutaneous cannulated screws were recorded as the G-arm group. Thirty-one cases assisted by ?uoroscopy of C-arm X-ray machine in the placement of percutaneous cannulated screws were recorded as the C-arm group. Harris score was used to evaluate the hip function. The intraoperative operating X-ray machine times, operative time, postoperative hospital stay, pain visual analogue score and Harris score at the last follow-up were compared. Results Both group'' s operations were successfully completed. The G-arm group had 31 cases of anatomical reduction, 2 cases of functional reduction, while the C-arm group had 28 cases of anatomical reduction and 3 cases of functional reduction. All patients were followed up for an average of ( 5 . 7 ± 0 . 6 ) months. In the G-arm group, the intraoperative operating X-ray machine times (t=6.287, P=0.000) and operation time (t=6.482, P=0.000) were less than those in the C-arm group (P < 0. 05). There was no signi?cant difference in the postoperative hospital stay (t =0.568, P = 0 . 571 ), pain visual analogue scale (t =0.530, P = 0 . 597 ) and Harris score (t =0.714, P = 0 . 477 ) at the last follow-up between the two groups (P >0.05). Conclusion The use of G-arm X-ray machine assisted the placement during cannulated screws ?xation for femoral neck fractures has the advantages of fewer intraoperative operating X-ray machine times and shorter operative time, and can achieve satisfactory therapeutic results.