Clinical Observation Of Drainage In Articular Chamber After Total Knee Arthroplasty

Objective:To define the best drainage time by observation and analysis of drainage quantity, wound healing and bactenium culture for drainage fluid.Methods:In 68 operation cases each drainage was performed in articular chamber and the drainage quantity was recorded at 6h,12h,24h,48h and 72h. We recorded the wound healing, accumulate drainager, assemble drainager and blood oozing at drain entrance, and made statistical analysis.Results:In 68 operation 32%,83% 92%,68% and 14% of total postoperative bleeding were collected during the 6h,12h,24h,48h and 72h hours respectively.Three cases between 24 and 48 hour, Fluidify was isolated in cultures from the nick, eight case between 24 and 48 hour, hemorrhage was isolated in cultures from subcutaneous portion of the drain; four case between 48 and 72 hour Fluidify was isolated in cultures from the nick, fourteen case between 48 and 72 hemorrhage was isolated in cultures from the subcutaneous portion of the drain; six cases after 72 hour,Fluidify was isolated in cultures from the nick, ten cases after 72 hour, hemorrhage was isolated in cultures from the subcutaneous portion of the drain.Conclusion:The drainage of the total knee arthroplasty is decrease obviously.The drainage of the total arthroplasty was left in place 24 hours after operation. The danger of wound infection will increase if the drainage is longer after operation.