Automated Hovering for Joint Replacement Surgery

The goal of this study is to test the approach of automated hovering to encourage patients to be discharged to home safely after lower extremity joint replacement surgery (LEJR). The investigators will target those patients undergoing hip or knee replacement surgery at a large urban hospital system at two different sites. The investigators aim is to increase the number of patients that are discharged to home, by providing patients with a physical activity pedometer, daily pain score tracking through bi-directional text messaging, milestone and nudge messaging for recovery, social influence, and connection to clinicians as needed for 6 weeks after surgery. Eligible participants are age 18-85, with a Risk Assessment and Prediction Tool (RAPT) score of 6-8 and are scheduled to undergo lower-extremity joint replacement surgery. Participants will be randomized 1:1 to usual care (Arm 1) and intervention (Arms 2a and 2b). After enrollment with the monitoring device, participants in the intervention group will be randomized 1:1 to Arm 2a (remote monitoring) or Arm 2b (remote monitoring + goal-setting and social support). Both intervention arms will receive the intervention for 6 weeks post-surgery.