Musculoskeletal Cancers Remote Monitoring and Care

This study aims to evaluate how walking stability and the ability to perform daily activities change during cancer treatment, and whether a smartwatch can detect these changes. The goal is to develop proactive, personalized tools that automatically monitor treatment response and predict potential complications. To support future implementation, the study will assess the feasibility of wearing a smartwatch for at least 12 hours per day, using a mobile application, and completing weekly questionnaires among patients with primary osteosarcoma or metastatic bone disease.

Inclusion Criteria: * primary sarcoma or metastatic bone disease of the lower extremities or pelvis. * undergoing evaluation for (or have recently undergone) non-surgical or surgical intervention. * recent history of home ambulation. Exclusion Criteria: * under 18 years of age at the time of study enrolment * inability to comprehend consent form and give informed consent * no access to a smartphone (iOS or Android) to interface with watch application * tattoos located on the skin of the wrist or forearm where the watch will be placed or other skin conditions preventing adequate sensor function * amputation or other disease of the arm or skin that prevents wear of a smart-watch device * inability to tolerate watch for at least 12 hours per day on at least 80% of days in a four-week period