Variation of the screw Angle results in reduction of purchase of the locking interface, or cross-threading the head.
螺钉角度的变异会致使锁定界面的减少或跨螺纹的头。
The reasons of internal fixation failure were nonanatomically reduction of fractures, unrigid interal fixation, over early weight bearing and poor placement of lag screw.
内固定失败原因是术中骨折未解剖复位、内固定不坚强、过早完全负重以及拉力螺钉位置不良。
Objective To compare the clinical results of close reduction plus cannulated screw system and open reduction plus bone flap transfer treating femoral neck fractures.
目的探讨股骨颈骨折采用闭合复位加空心钉固定与切开复位空心钉固定加骨瓣移植的临床效果。
Aim:The design features and reduction efficaty of a new pedicle screw fixator were analyzed according to clinical practice.
目的：结合临床实践，分析新型椎弓根固定器的设计特点和复位作用。
The NURBS curve is used for fitting the screw profile when cloud datas pretreatment is already done such as eliminated noise data and data reduction, the fitting error is also analyzed.
通过对测量数据的噪声点过滤，数据精简等预处理，采用NURBS曲线拟合螺杆型线并分析了其拟合误差。
Methods Among 32 cases of femoral neck fracture, 28 cases were treated by close reduction and 4 cases were treated by open reduction with AO hollow screw.
方法：对32例股骨颈骨折患者采用闭合复位（28例）或切开复位（4例）加AO空心螺钉内固定治疗。
Methods 14 cases of femoral neck fracture with calcar comminution were operated. Among them, 5 cases of undisplaced fractures were treated with close reduction and breaking compression screw fixation;
方法手术治疗14例股骨距碎裂的股骨颈骨折患者，5例骨折无明显移位者行闭合复位折断式加压螺钉内固定；
With posterior elbow incision, all cases were treated in open reduction with double-plate screw fixation, also with early functional exercises.
采用肘后正中切口，行切开复位双钢板螺钉内固定治疗。早期进行功能锻炼。
Methods 49 cases of femoral neck fracture were treated with closed reduction internal fixation with compression spiral screw and traditional Chinese medicine.
方法对49例股骨颈骨折患者采用闭合复位加压螺纹钉内固定结合中药治疗。
Methods 49 cases of femoral neck fracture were treated with closed reduction internal fixation with compression spiral screw and traditional Chinese medicine.
方法对49例股骨颈骨折患者采用闭合复位加压螺纹钉内固定结合中药治疗。
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