Posterior Cruciate Ligament Balancing in Total Knee Arthroplasty with a Dynamic PCL Spacer

  • A. B. Wymenga
  • B. Christen
  • U. Wehrli


PCL balancing in total knee arthroplasty (TKA) is difficult to achieve with a bone-referenced technique. With a newly developed dynamic PCL spacer the flexion gap size of the knee, anterior tibia translation and distraction force were measured. We found that the flexion gap of the knee is a dynamic space which increased in size from an average of 17.3 mm with 100 N tension to 20.5 mm with 200 N tension. The anterior translation increased from 0.6 mm to 4.3 mm. The ratio between increase of the flexion gap and anterior tibia translation was 1:2. Total knee arthroplasty with the dynamic PCL spacer provided normal stability in the anteroposterior direction, a good range of flexion, and a correct contact position of the femur onto the posterior 55%–60% of the tibia in patients operated on with this technique.


Total Knee Arthroplasty Total Knee Replacement Anterior Translation Femoral Rollback Anteroposterior Laxity 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer Medizin Verlag Heidelberg 2005

Authors and Affiliations

  • A. B. Wymenga
  • B. Christen
  • U. Wehrli

There are no affiliations available

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