Incidence of Fat Embolism With Computer Assisted Total Knee Arthroplasty

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Total Enrollment

50 participants

Study Classification

OBSERVATIONAL

Study Start Date

2006-01-31

Study Completion Date

2008-03-31

Brief Summary

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The study to determine the if the incidence of Fat Embolism is decreased using Computer Assisted technology when performing a Total Knee Arthroplasty.

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Detailed Description

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Computer assisted total knee arthroplasty is at its inception currently. There are many unknowns about this specific technique, particularly when it comes down to fat embolism syndrome. There is a high incidence of fat embolism during total knee arthroplasty as seen both by echocariography as well as sampling of right atrial blood. During a jig-based, or traditional, total knee arthroplasty, a rod is placed inside the femur, and sometimes the tibia as well. Intrusumentations of the medullary canal is known to cause fat embolism. Fat embolism is a syndrome which can produce post-operative confusion, hypoxemia, all the way to post-op and intra-operative death.

Computer assisted total knee arthroplasty does not use intramedullary jigs. It is presumed that by not instrumenting the medullary canal, the rate of fat embolism will be significantly reduced.

Fifty patient s will be studied while they are having a computer assisted total knee arthoplasty. A PICC line will be placed in their arm by an interventional radiologist pre-operatively. This PICC line will be thread into the right atrium. Right atrial blood will be sent to pathology every 10 minutes during the 60 to 90 minute procedure and at intervals post-op. The right atrial blood will be stained for bone marrow elements.

This study is to presumed to show yet another benefit of computer assisted surgery.