• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>The bone & joint journal. >The identification and quantification of instability in a primary total knee replacement prior to revision
【24h】

The identification and quantification of instability in a primary total knee replacement prior to revision

机译：翻修前一次全膝关节置换的不稳定性的鉴定和量化

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Instability is the reason for revision of a primarytotal knee replacement (TKR) in 20% of patients. To date, the diagnosisof instability has been based on the patient’s symptoms and a subjectiveclinical assessment. We assessed whether a measured standardisedforced leg extension could be used to quantify instability.A total of 25 patients (11 male/14 female, mean age 70 years;49 to 85) who were to undergo a revision TKR for instability ofa primary implant were assessed with a Nottingham rig pre-operativelyand then at six and 26 weeks post-operatively. Output was quantified(in revolutions per minute (rpm)) by accelerating a stationary flywheel.A control group of 183 patients (71 male/112 female, mean age 69years) who had undergone primary TKR were evaluated for comparison. Pre-operatively, all 25 patients with instability exhibited adistinctive pattern of reduction in ‘mid-push’ speed. The mean reductionwas 55 rpm (sd 33.2). Post-operatively, no patient exhibitedthis pattern and the reduction in ‘mid-push’ speed was 0 rpm. Thechange between pre- and post-operative assessment was significant(p < 0.001). No patients in the control group exhibited thispattern at any of the intervals assessed. The between-groups differencewas also significant (p < 0.001). This suggests that a quantitativediagnostic test to assess the unstable primary TKR could be developed.Cite this article: Bone Joint J 2014;96-B:1339–43.
机译：不稳定是20％的患者修订一次原发性全膝关节置换（TKR）的原因。迄今为止，不稳定的诊断是基于患者的症状和主观临床评估。我们评估了是否可以使用标准化的强制性腿伸术来量化不稳定性。评估了25例因原发性植入物不稳定性而接受TKR修订的患者（11例男性/ 14例女性，平均年龄70岁; 49至85岁）术前，然后在术后6周和26周使用诺丁汉钻机。通过加速固定飞轮来量化输出（每分钟转数（rpm））。对对照组183例接受原发性TKR的患者（71例男性/ 112例女性，平均年龄69岁）进行评估以进行比较。术前，所有25名不稳定患者均表现出“中推”速度下降的明显方式。平均减速为55 rpm（标准偏差33.2）。术后没有患者表现出这种模式，“中推”速度降低为0 rpm。术前和术后评估之间的变化是显着的（p <0.001）。对照组中没有患者在任何评估的间隔内均表现出这种模式。组间差异也很显着（p <0.001）。这表明可以开发一种评估不稳定的原发性TKR的定量诊断测试。引用本文：Bone Joint J 2014; 96-B：1339-43。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号