Fig. 1From: Optimal time period for blood glucose level evaluation after total knee arthroplasty in patients without diabetes: a prospective, observational studyPerioperative blood glucose level (BGL) changes. The mean BGLs are significantly higher on the day of surgery, postoperative day (POD) 1, and POD 2 than preoperative levels. The highest BGL is found on POD 1. SD standard deviationBack to article page