Evaluation of Smartphone-Based Postoperative Recovery Tracking Systems

Smartphone-based systems for tracking postoperative recovery, ranging from symptom-diary applications to platforms that integrate wearable accelerometers and wound photography, have expanded rapidly as surgical care has shifted toward shorter admissions and earlier discharge. This review synthesizes the current evidence across three domains: randomized trials of patient-reported recovery apps in oncologic and ambulatory surgery, wearable-sensor systems that quantify physical activity as an objective recovery metric, and photograph-based wound surveillance for earlier detection of surgical site infection. Trial-level evidence indicates that apps built around a clear escalation pathway, where patient-entered data trigger clinician outreach, are more consistently associated with improved recovery quality and reduced unnecessary utilization than passive symptom logging alone. Wearable-sensor step counts show reasonable measurement validity, including among orthopedic patients using walking aids, but outcome-linked predictive evidence remains limited, while photograph-based wound assessment, increasingly paired with automated triage, is diagnostically credible but constrained by patient engagement over the full healing period. We conclude that the principal barriers to routine adoption are not diagnostic or technical but organizational: sustained patient engagement, clinical staffing to act on alerts, device interoperability, and health-economic evidence remain the gaps that will determine whether these tools become standard postoperative infrastructure.