机构地区:[1]北京大学第三医院骨科,100191
出 处:《中华医学杂志》2018年第27期2157-2161,共5页National Medical Journal of China
基 金:2016年北京大学第三医院临床重点项目--培育探索项目(BYSY2016010)
摘 要:目的分析在全膝关节置换术(TKA)中使用计算机导航(CAS)系统、3D打印个性化截骨导板(PSI)与传统器械手术在手术时间和术后下肢冠状面机械轴力线恢复上的差异。方法回顾性收集2013年1月至2014年12月在北京大学第三医院诊断为重度骨性关节炎,经同一手术医师完成的单侧、初次TKA患者共96例。按照手术方式分为3组:CAS-TKA组于术中使用CAS进行TKA手术,PSI-TKA组术中使用PSI进行TKA手术,对照组使用传统器械进行TKA手术。比较3组患者的手术时间和术后下肢冠状面机械轴力线的差异。3组间比较采用单因素方差分析,组间两两比较采用LSD法检验。结果所有患者TKA手术时间为(79±16) min。其中,CAS-TKA组时间最长,明显长于其他2组[CAS-TKA比PSI-TKA:(90±10) min比(80±14) min,LSD-t=3.458,P〈0.05;CAS-TKA比对照组:(90±10) min比(66±11) min,LSD-t=8.350,P〈0.05;PSI-TKA组比对照组(80±14) min比(66±11) min,LSD-t=4.582,P〈0.05]。所有患者术后下肢冠状面机械轴力线平均内外翻角度分别为2.4°和2.0°。总体力线偏移(内翻/外翻〉3°)率是22.9%,其中CAS-TKA组为11.8%,PSI-TKA组为27.6%,对照组为30.3%,3组力线偏移率差异无统计学意义(χ2=3.771,P=0.151)。结论CAS和PSI的使用均会显著增加TKA手术时间,和传统器械手术一样,这两种技术均可良好地恢复TKA术后下肢冠状位力线,也展现出了减少力线偏移的趋势。ObjectiveTo compare the surgical time and postoperative coronal mechanical axis alignment in patients with osteoarthritis who were treated with three different total knee arthroplasty (TKA) techniques: computer-assisted navigation surgery (CAS), patient specific instrumentation(PSI) and traditional instrumentation.MethodsA total of 96 patients with severe knee osteoarthritis who underwent unilateral primary TKA by the same surgeon were included in this retrospective study.The patients were divided into CAS-TKA group (34 patients), PSI-TKA group (29 patients) and control group (33 patients) based on surgical techniques used in the operations.The surgical time and postoperative coronal mechanical axis alignment were compared between the three groups.One-way ANOVA was used to detect the differences between three groups, and LSD test was used for the post-hoc test.ResultsThe overall mean surgical time of the patients was (79±16) min.CAS-TKA group had significantly longer surgical time when compared with those in the other two groups [CAS-TKA vs PSI-TKA: (90±10) min vs (80±14) min, LSD-t=3.458, P〈0.05; CAS-TKA vs control: (90±10) min vs (66±11) min, LSD-t=8.350, P〈0.05; PSI-TKA vs control: (80±14) min vs (66±11) min, LSD-t=4.582, P〈0.05]. The overall mean postoperative coronal mechanical alignment varus/valgus deformity was 2.4° and 2.0°, respectively.The overall outliers (varus/valgus〉3°) represented 22.9% of cases and were distributed as followed: 11.8% in CAS-TKA group, 27.6% in PSI-TKA group, 30.3% in control group; and no significant differences was found among the three groups (χ2=3.771, P=0.151). ConclusionsThe use of CAS or PSI in TKA costs a significant longer surgical time.These two techniques results in acceptable postoperative coronal alignment and both demonstrated a potential benefit in reducing outliers when compared with the traditional instruments.
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