[目的]比较机器人ARTHROBOT辅助全髋置换术(robot-assisted total hip arthroplasty,r THA)与传统手工全髋置换术(manual total hip arthroplasty,mTHA)的早期效果。[方法]回顾性分析2022年4月—2022年11月本院行THA的58例患者的临床资...[目的]比较机器人ARTHROBOT辅助全髋置换术(robot-assisted total hip arthroplasty,r THA)与传统手工全髋置换术(manual total hip arthroplasty,mTHA)的早期效果。[方法]回顾性分析2022年4月—2022年11月本院行THA的58例患者的临床资料。根据术前医患沟通结果,28例采用rTHA,另外30例采用mTHA,对比两组围手术期、随访及影像学资料。[结果]两组患者均手术顺利,未见术中并发症。rTHA组手术时间、切口总长度、治疗费用均显著大于mTHA组(P<0.05)。rTHA组术后无脱位者,而mTHA组1例因假体位置不良,脱位,行翻修术。随时间推移,两组患者VAS评分、Harris评分、髋伸-屈及内-外旋ROM均显著改善(P<0.05)。rTHA组Harris评分术后1个月[(70.8±3.3)vs(68.2±5.1),P=0.043]、末次随访时[(92.0±3.6)vs(89.7±4.2),P=0.025]及术后6个月髋内-外旋ROM[(48.5±5.9)°vs(44.1±6.6)°,P=0.009]均显著优于mTHA组。影像方面,rTHA组术后双下肢长度差(leg length discrepancy,LLD)[(0.4±0.2)mm vs(0.6±0.3)mm,P=0.003]、双侧股骨偏心距(femoral offset deviation,FOD)差值[(0.3±0.2)mm vs(0.7±0.5)mm,P<0.001]、双侧髋臼偏心距(acetabular offset deviation,AOD)差值[(0.3±0.2)mm vs(0.5±0.3)mm,P=0.004]和联合偏心距(combined offset deviation,COD)差值[(0.4±0.4)mm vs(0.8±0.6)mm,P<0.001]均显著小于mTHA组,而两组髋臼外展角(acetabular abduction angle,AAA)和髋臼前倾角(acetabular anteversion,AA)差异无统计学意义(P>0.05)。以Lewinnek安全区为标准,rTHA组安全区内病例数占比[例(%),26(92.9)vs 21(70.0),P=0.026]显著高于mTHA组(P<0.05)。[结论]机器人ARTHROBOT辅助THA使假体置入更精准,髋臼杯置入安全区的比例更高,能更好恢复患髋偏心距,有利于减少LLD,疗效更佳。展开更多
By using the coding properties and statistic properties of the plaintext,the differential properties of the key stream sequences generated by a nonlinear combined generator were analyzed.Then a differential attack alg...By using the coding properties and statistic properties of the plaintext,the differential properties of the key stream sequences generated by a nonlinear combined generator were analyzed.Then a differential attack algorithm on the nonlinear combined sequences was proposed.At last,an attack example adopting the differential attack algorithm was presented.展开更多
基金supported by the National Natural Science Foundation of China(No.60573028)Research Foundation of National University of Defense Technology(No.JC-02-02).
文摘By using the coding properties and statistic properties of the plaintext,the differential properties of the key stream sequences generated by a nonlinear combined generator were analyzed.Then a differential attack algorithm on the nonlinear combined sequences was proposed.At last,an attack example adopting the differential attack algorithm was presented.
