Compared to intraarticular indwelling closed suction drainage method what was the result of subcutaneous indwelling closed suction drainage method  on The mean visible blood drainage during the first 24 h and between 24 and 48 h after TKA?
The total blood loss after TKA was significantly different between two groups (P = 0.04). The total blood loss (visible drained blood + hidden loss) was less in subcutaneous drainage group.