This site became the new on June 19th. Learn more.
Show more Menu IMPORTANT: Listing of a study on this site does not reflect endorsement by the National Institutes of Health. Talk with a trusted healthcare professional before volunteering for a study. Read more... Menu IMPORTANT: Talk with a trusted healthcare professional before volunteering for a study. Read more... Menu
Give us feedback

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:


Ages Eligible for Study:   Child, Adult, Senior
Sexes Eligible for Study:   All
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.
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

No Contacts or Locations Provided
  More Information Identifier: NCT00982956     History of Changes
Other Study ID Numbers: 2007023
Study First Received: September 22, 2009
Last Updated: September 22, 2009 processed this record on September 19, 2017