Application of Computer-assisted Navigation in Total Knee Arthroplasty: A Randomized Pair-matched Double-blind Trial

This study has been completed.
Information provided by:
Chinese PLA General Hospital Identifier:
First received: September 22, 2009
Last updated: NA
Last verified: September 2009
History: No changes posted


The purpose of this study is to evaluate the application of computer-assisted navigation in Total Knee Arthroplasty (TKA ) by comparing it with conventional TKA.


Gemini MK II implants (Link, Germany) were used. VectorVisionâ CT-free navigation system (BrainLab, Germany) was employed for the TKA. For each subject, computer-navigation TKA and the conventional TKA were separately performed on two knee joints. The operative method and order of the operations were decided on a randomized basis. All the patients and doctors conducting follow-up study and performing imaging measurement were blind to selection of the operation. Student t test was used for statistical analysis.

hypothesis: computer-assisted navigation system can significantly improve the accuracy of tibial and femoral cuts on coronal and sagittal planes.

Knee Arthritis

Study Type: Observational
Study Design: Observational Model: Case Control
Time Perspective: Prospective

Further study details as provided by Chinese PLA General Hospital:


Genders Eligible for Study:   Both
Sampling Method:   Probability Sample
Study Population
the subjects who had been scheduled for simultaneous bilateral TKA,

Inclusion Criteria:

  • plan for simultaneous bilateral TKA.

Exclusion Criteria:

  • plan for unilateral TKA.
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  More Information

No publications provided Identifier: NCT00982956     History of Changes
Other Study ID Numbers: 2007023
Study First Received: September 22, 2009
Last Updated: September 22, 2009
Health Authority: China: Ethics Committee processed this record on November 27, 2015