Yoeri Bemelmans

Outpatient unicompartimental knee arthroplasty 83 6 Figure 2. Distribution of median, 1 st and 3 rd percentile and range for NRS pain scores (Y-axis) for both pathways (RR: Rapid Recovery, OS: Outpatient Surgery) measured preoperative (Pre OR), before- (BFM) and after (AFM) the first mobilization, at 16:00hrs and 22:00hrs and on day 1 and 2 at 8:00hrs, 16:00hrs and 22:00hrs (X-axis). Minimum and maximum are displayed with the whiskers. Pre OR BFM AFM 16:00 22:00 8:00 16:00 22:00 8:00 16:00 22:00 Day 0 Day 1 Day 2 0,0 1,0 2,0 3,0 4,0 5,0 6,0 7,0 8,0 9,0 10,0 PreOR Before After 16:00 22:00 8:00 16:00 22:00 8:00 16:00 22:00 NRS pain scale (10 being worst pain) 0,0 1,0 2,0 3,0 4,0 5,0 6,0 7,0 0,0 1,0 2,0 3,0 4,0 5,0 6,0 RR pathway OS pathway There were no significant differences (RR vs. OS) in the number of patients with PONV (4 vs. 2) and opiate use (11 vs. 9) <48hrs postoperative. AE’s occurred only in one patient in theOS pathway. This patient was readmitted<3mth postoperative. The patient did not follow instructions for home based physiotherapy during the first 6weeks postoperative and suffered from knee stiffness resulting in a limited knee flexion of 30 degrees. This required manipulation under anesthesia after which the patient recovered completely. At 3mth followup, themean (SD) OKS and EQ-5D significantly (p<0.05) improvedwithin each pathway, from 35.2 (8.1) to 22.7 (6.5) and 0.77 (0.1) to 0.85 (0.1) for the RR pathway and 32.0 (7.5) to 24.4 (7.6) and 0.75 (0.1) to 0.85 (0.1) in the OS pathway. There were no significant differences between both pathways.