Allow a surgeon to convert from a NexGen primary implant to a stemmed LCCK implant intraoperatively. Designed for use in difficult primary and revision knee surgeries. Provides stabilization with an elevated tibial spine and deeper femoral intercondylar box that accommodates a range of motion in excess of 120 degrees.

2 | NexGen LCCK Surgical Technique The NexGen Legacy Constrained Condylar Knee (LCCK) components are designed for use in both primary and revision surgeries (Figure 1). The NexGen Revision Instruments are an intramedullary referencing system. All femoral and tibial cuts are based from reamers or stem extension provisionals located

5 | Revision NexGen LCCK Instrumentation for Legacy Constrained Condylar Knee Surgical Technique Preoperative Planning As with all primary and revision arthroplasty, preoperative planning is essential. Estimate the size of the femoral component by templating from a true lateral x-ray of the contralateral knee. Be sure that the LCCK stem extension

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The NexGen Legacy LCCK Femoral Component is intended for use with the LCCK Articular Surface in patients who, in the surgeon’s judgement, require additional prosthetic stabilization due to inadequate mediolateral, anteroposterior, and varus/ valgus ligament function. The LCCK Femoral Component can also be used in conjunction

lateral x-ray of the contralateral knee. Be sure that the LCCK Stem Extension Template is centered within the femoral medullary canal. Intraoperative restoration of the appropriate A/P depth of the femur will yield the most appropriate flexion gap which can then be used to help determine the extension gap. Estimate

The NexGen ® Legacy Constrained Condylar Knee (LCCK) components are designed for use in both primary and revision surgeries (Fig. 1). The NexGen Revision Instruments are an intramedullary referencing system. All femoral and tibial cuts are based from Reamers or Stem Extension Provisionals located within the medullary canal.

具体地讲它可用于下列两种情况：①病膝的关节畸形严重，外翻或内翻固定畸形达到20°以上，屈曲挛缩达到30°以上的病人，可用LCCK来做初次人工膝置换术；②用作人工膝置换术后的翻修手术。 凡做翻修手术首先要弄清以前失败的原因，否则在翻修时仍会犯以前的错误。 在进行手术前必须选好切口，要考虑它的软组织情况，伸膝机制的功能，如何保留骨量和取出假体等因素。 要做好翻修手术，必须要正确地使用手术工具和良好的手术技术。 这些畸形严重的膝关节，往往伴 …

NexGen ® Legacy ® Constrained Condylar Knee (LCCK) The NexGen LCCK is intended for patients who, in the surgeon's judgment, require additional stabilization due to inadequate mediolateral, anteroposterior, and varus/valgus ligament function, and require augmentation and/or stem extensions due to inadequate bone stock.

摘要 目的 ：观察全膝关节置换术中使用lcck人工假体的近期疗效；方法：从2008年11月～2011年10月，对6例(6膝)有胫骨平台骨缺损的膝关节行全膝关节置换术。男1例(1膝)，女5例(5膝)；年龄68～77岁，平均74.6岁。