Juul Rasmus, Fabrin Jesper, Poulsen Klaus, Schroder Henrik Morville
Department of Orthopaedic Surgery, Zealand University Hospital, Koge, Denmark.
Department of Orthopaedic Surgery, Naestved Hospital, Naestved, Denmark.
Knee Surg Relat Res. 2016 Sep;28(3):239-44. doi: 10.5792/ksrr.2016.28.3.239. Epub 2016 Aug 25.
To report our experience with two-stage revision using a new femoral component (NFC) spacer (Depuy Synthes) as an articulating spacer.
In this retrospective study, we reviewed 22 two-stage revisions that were performed using an NFC spacer in 22 patients suspected of having an infected total knee arthroplasty (TKA) from December 2010 to March 2013. The result was considered successful when eradication of infection was achieved using only one NFC spacer.
The average time from primary TKA to the first stage procedure was 29.1 months and the average time from the first stage procedure until the final second stage procedure was 12.7 weeks. The average range of motion increased from 82° preoperatively to 104° postoperatively. The American Knee Society Knee score increased from 29.3 points to 66 points. The Function score increased from 29.5 points to 64 points. Four cases were reinfected after two-stage revision. The mean follow-up was 37.6 months.
The new articulating spacer showed promising short-term results both with regard to eradication of infection and functional improvement.
报告我们使用新型股骨组件（NFC）间隔物（Depuy Synthes）作为关节活动间隔物进行两阶段翻修的经验。
在这项回顾性研究中，我们回顾了2010年12月至2013年3月期间对22例疑似感染性全膝关节置换术（TKA）患者使用NFC间隔物进行的22次两阶段翻修手术。若仅使用一个NFC间隔物即实现感染根除，则结果视为成功。
初次TKA至第一阶段手术的平均时间为29.1个月，第一阶段手术至最终第二阶段手术的平均时间为12.7周。平均活动范围从术前的82°增加到术后的104°。美国膝关节协会膝关节评分从29.3分提高到66分。功能评分从29.5分提高到64分。两阶段翻修术后有4例再次感染。平均随访时间为37.6个月。
新型关节活动间隔物在根除感染和功能改善方面均显示出良好的短期效果。
