Fig. 3From: Mid-term clinical outcomes and complications of primary total knee arthroplasty in hemodialysis patients: a retrospective comparative cohort studyThe number of knees with postoperative complications in the hemodialysis group at each month in the two years after surgery. ∗ denotes a significant difference between the 0–1 month period and the other time periods. p < 0.0001Back to article page