Figure 1.

Patients excluded from analysis. Exclusion criteria included nutritionist referral for reason other than weight loss, presenting for reason other than seeking primary TJA, no recorded weights after first contact, having undergone arthroplasty at an outside institution during the study period, and bariatric surgery performed prior to or during the study period. After application of exclusion criteria, 273 referred patients and 174 matched control patients were included in our final analysis.